Organic compound and organic electroluminescent element comprising same

文档序号：1307886 发布日期：2020-08-11 浏览：25次中文

阅读说明：本技术 有机化合物及包含其的有机电致发光元件 (Organic compound and organic electroluminescent element comprising same ) 是由崔泰镇朴镐喆白英美金恩珍于 2015-04-07 设计创作，主要内容包括：本发明提供新型有机化合物及包含其的有机电致发光元件,本发明的有机化合物用于有机电致发光元件的有机物层,因此能够提高有机电致发光元件的发光效率、驱动电压、寿命等。所述有机化合物由化学式1表示,化学式1中,R1和R2、R2和R3、R3和R4、R4和R5、R5和R6、R6和R7、R7和R8中的一组彼此结合而形成化学式2表示的缩合环,化学式2中,虚线是与化学式1结合的部分,X1选自N(Ar1)等,Y1至Y4各自独立地为N或C(R9),Ar1选自由C1～C40的烷基、C2～C40的烯基等组成的组,或者与相邻基团结合而形成缩合环,不形成化学式2的缩合环的R1至R8及R9彼此相同或不同。<Image he="277" wi="700" file="DDA0002476869120000011.GIF" imgContent="drawing" imgFormat="GIF" orientation="portrait" inline="no"></Image>(The present invention provides a novel organic compound and an organic electroluminescent device including the same, wherein the organic compound is used in an organic layer of the organic electroluminescent device, and thus the organic electroluminescent device can have improved luminous efficiency, driving voltage, life, and the like. The organic compound is represented by chemical formula 1, wherein R in chemical formula 1 1 And R 2 、R 2 And R 3 、R 3 And R 4 、R 4 And R 5 、R 5 And R 6 、R 6 And R 7 、R 7 And R 8 Wherein the dotted line is a moiety bound to chemical formula 1, X is a group of 1 Is selected from N (Ar) 1 ) Etc. Y 1 To Y 4 Each independently is N or C (R) 9 )，Ar 1 Selected from the group consisting of C 1 ～C 40 Alkyl of (C) 2 ～C 40 Or R which forms a condensed ring by bonding to an adjacent group and does not form a condensed ring of chemical formula 2 1 To R 8 And R 9 The same or different from each other.)

1. A compound represented by the following chemical formula 1,

chemical formula 1

In the chemical formula 1, the metal oxide is represented by,

R₁and R₂、R₂And R₃、R₃And R₄、R₄And R₅、R₅And R₆、R₆And R₇、R₇And R₈Are combined with each other to form a condensed ring represented by the following chemical formula 2,

chemical formula 2

In the chemical formula 2, the first and second organic solvents,

the dotted line is a moiety bound to said chemical formula 1,

X₁is N (Ar)₁)，

Y₁To Y₄Each independently is N or C (R)₉)，

Ar₁Is selected from the group consisting of₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

r not forming the condensed ring of said chemical formula 2₁To R₈And R₉Are identical or different from one another and can each independently be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

ar is₁And R₁To R₉Alkyl, alkenyl, alkynyl, cycloalkylHeterocycloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylsilyl, arylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylamino groups may each be independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀And one or more substituents selected from the group consisting of arylamine groups of (a) or (b), which may combine with an adjacent group to form a condensed ring, in which case, when the substituents are plural, they may be the same as or different from each other.

2. The compound according to claim 1, which is represented by any one selected from the following chemical formulas 3 to 5,

chemical formula 3

Chemical formula 4

Chemical formula 5

In the chemical formulas 3 to 5,

X₁、Y₁to Y₄And R₁To R₈Are each as defined in claim 1.

3. The compound of claim 1, wherein Y is₁To Y₄All being C (R)₉) Plural of C (R)₉) Are the same as or different from each other,

R₉as defined in claim 1.

4. The compound of claim 1, wherein Ar is Ar₁R not forming the condensed ring of chemical formula 2₁To R₈And R₉At least one of which is a substituent represented by the following chemical formula 6,

chemical formula 6

In the chemical formula 6, the first and second organic solvents,

L₁may be a single bond or selected from the group consisting of C₆～C₁₈Or a heteroarylene group having a nuclear number of 5 to 18, or a condensed ring formed by combining adjacent substituents,

R_aand R_bAre the same or different from each other and can be independently selected from C₁～C₄₀Alkyl of (C)₆～C₆₀Or a substituent represented by the following chemical formula 7 or chemical formula 8, or a condensed ring formed by bonding an adjacent substituent to the aryl group and the heteroaryl group having an atomic number of 5 to 60,

chemical formula 7

Chemical formula 8

In the chemical formulas 7 and 8,

x and Y are each a six-membered aromatic ring,

L₁₁and L₁₂Each is a single bond, or is selected from C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

Ar₆selected from the group consisting of C₆～C₁₈Aryl and heteroaryl with a nuclear number of 5 to 18,

a. b and d are each an integer of 0 to 4, and when a, b and d are each an integer of 1 to 4, R_c、R_dAnd R_fEach independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

c is an integer of 0 to 3, when c is 1 to 3, R_cSelected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

at this time, a plurality of R_cA plurality of R, which may be the same or different from each other_dA plurality of R, which may be the same or different from each other_eA plurality of R, which may be the same or different from each other_fAre the same as or different from each other,

said L₁Arylene, heteroarylene and R of_aAnd R_bThe alkyl, aryl, heteroaryl of (A) are each independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀When the number of the substituents is plural, they may be the same or different from each other.

5. The compound of claim 1, wherein Ar is Ar₁R not forming the condensed ring of chemical formula 2₁To R₈And R₉At least one of which is a substituent represented by the following chemical formula 9,

chemical formula 9

In the chemical formula 9, the first and second organic solvents,

L₂is a single bond or is selected from the group consisting of C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

Z₁to Z₅Are the same or different from each other and are each independently N or C (R)₁₁) At this time, Z₁To Z₅Is N, said C (R)₁₁) In the case of a plurality of them, they may be the same as or different from each other,

R₁₁can be selected from hydrogen, deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylsilyl group of (a) or a condensed ring formed by bonding to an adjacent group,

said L₂Arylene, heteroarylene and said R₁₁The alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkoxy, cycloalkyl, heterocycloalkyl, arylamine, alkylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylsilyl groups of (a) are each independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl group, atomic number 5 toHeteroaryl of 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀When the number of the substituents is plural, they may be the same or different from each other.

6. The compound of claim 1, wherein Ar is Ar₁R not forming the condensed ring of chemical formula 2₁To R₈And R₉Is selected from the group consisting of substituents represented by the following chemical formula A-1 to chemical formula A-15,

in the chemical formulae A-1 to A-15,

L₂is a single bond or is selected from the group consisting of C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

R₁₁in the case of a plurality of them, they may be the same as or different from each other,

R₁₁can be selected from hydrogen, deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Of arylamineBase, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylsilyl group of (a) or a condensed ring formed by bonding to an adjacent group,

n is an integer of 0 to 4, when n is an integer of 1 to 4, R₂₁Can be selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylsilyl group of (a) or a condensed ring formed by bonding to an adjacent group,

the R is₁₁And R₂₁Each independently selected from the group consisting of deuterium, halogen, cyano, nitro, C, alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkoxy, cycloalkyl, heterocycloalkyl, arylamino, alkylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide, and arylsilyl₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl radicals, nucleiHeterocycloalkyl of number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀When the number of the substituents is plural, they may be the same or different from each other.

7. The compound of claim 1, wherein Ar is Ar₁R not forming the condensed ring of chemical formula 2₁To R₈And R₉At least one of which is a substituent represented by the following chemical formula 10 or 11,

chemical formula 10

Chemical formula 11

In the chemical formulae 10 and 11,

L₃and L₄Each independently is a single bond, or is selected from the group consisting of C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

Z₆to Z₈Are identical to or different from each other and are each independently a single bond, or are O, S or N (R)₁₆) Wherein Z is not included₆And Z₇In the case of all of the single bonds,

at this time, the N (R)₁₆) In the case of a plurality of them, they may be the same as or different from each other,

R₁₆can be selected from hydrogen, deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylsilyl group of (a) or a condensed ring formed by bonding to an adjacent group,

e is an integer of 0 to 3, when e is 1 to 3, R₁₂Selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

f. g and h are integers from 0 to 4, and when f, g and h are each integers from 1 to 4, R₁₃To R₁₅Each independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

at this time, the L₃And L₄Arylene, heteroarylene and said R₁₂To R₁₆Each independently selected from the group consisting of deuterium, halogen, cyano, nitro, C, alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkoxy, cycloalkyl, heterocycloalkyl, arylamino, alkylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide, and arylsilyl₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀When the number of the substituents is plural, they may be the same or different from each other.

8. The compound of claim 1, wherein X is₁Is N (Ar)₁)，

Ar is₁Is a substituent represented by the following chemical formula 12,

chemical formula 12

In the chemical formula 12, the first and second organic solvents,

L₅is a single bond or is selected from the group consisting of C₆～C₆₀Is a group consisting of arylene groups of (a),

m is an integer of 1 to 2,

a is a six-membered aromatic ring,

x is an integer of 0 to 2, when x is an integer of 1 to 2, R₃₁Can be selected from deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or combine with an adjacent group to form a condensed ring, in which case R is₃₁In the case of a plurality of them, they may be the same as or different from each other,

Y₅to Y₈Each independently is N or C (R)₃₆) At this time, C (R)₃₆) In the case of a plurality of them, they may be the same as or different from each other,

R₃₂to R₃₆Are identical or different from one another and can each independently be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

said L₅Arylene of (A) and R₃₁To R₃₆The alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylsilyl, arylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylamine groups of (a) are each independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀And (b) one or more substituents selected from the group consisting of arylamine groups, which may be bonded to an adjacent group to form a condensed ring, wherein when a plurality of the substituents are present, they may be the same as or different from each other.

9. The compound according to claim 1, wherein the compound represented by chemical formula 1 is selected from the group consisting of,

10. the compound according to claim 1, wherein the compound represented by chemical formula 1 is selected from the group consisting of,

11. the compound according to claim 1, wherein the compound represented by chemical formula 1 is selected from the group consisting of,

12. an organic electroluminescent element comprising an anode, a cathode and one or more organic layers interposed between the anode and the cathode,

at least one of the one or more organic layers comprises a compound of any one of claims 1 to 11.

13. The organic electroluminescent element according to claim 12,

the one or more organic layers include a hole transport layer, a light emitting layer, and an electron transport layer,

the organic layer containing the compound is a light emitting layer or an electron transporting layer.

14. The organic electroluminescent element according to claim 12,

the one or more organic layers include a hole transport layer, a light emission auxiliary layer, a light emitting layer, and an electron transport layer,

the organic layer containing the compound is a light-emitting auxiliary layer.

15. The organic electroluminescent element according to claim 12,

the one or more organic layers include a hole transport layer, a light emitting layer, an electron transport auxiliary layer, and an electron transport layer,

the organic layer containing the compound is an electron transport auxiliary layer.

Technical Field

The present invention relates to a novel organic compound and an organic electroluminescent element including the same.

Background

With the intensive research on an organic Electroluminescence (EL) element developed by blue electroluminescence using anthracene single crystal in 1965 (hereinafter, simply referred to as "organic EL element"), Tang (Tang) in 1987 proposed a hole layer (NPB) and a light emitting layer (Alq)₃) An organic EL element having a two-layer laminated structure. In order to realize the desired high efficiency and long life characteristics of organic EL devices and to realize commercialization, a configuration has been proposed in which a multi-layered structure having a subdivision function is provided in the device, each of which has characteristics such as an organic layer that exhibits hole injection and transport functions, an organic layer that exhibits electron injection and transport functions, and an organic layer that induces electroluminescence by the combination of holes and electrons.

With respect to the organic electroluminescent element, if a voltage is applied between two electrodes, holes are injected from the anode into the organic layer, and electrons are injected from the cathode into the organic layer. When the injected holes and electrons meet, excitons (exiton) are formed, and when the excitons transition to a ground state, light is emitted. The substances contained in the organic layer may be classified into a light-emitting substance, a hole-injecting substance, a hole-transporting substance, an electron-injecting substance, and the like according to their functions.

The electron spin of the exciton formed by recombination of the electron and the hole is formed at a ratio of 25% and 75% of the singlet exciton and the triplet exciton, respectively. At this time, the organic EL element is classified into a fluorescent EL element in which singlet excitons participate in light emission and a phosphorescent EL element in which triplet excitons participate in light emission according to the kind of electron spin of the formed excitons.

In a fluorescent EL element which emits light by singlet excitons, the internal quantum efficiency is theoretically not more than 25% and the external quantum efficiency is limited to 5% depending on the generation ratio.

In a phosphorescent EL device which emits light by triplet excitons, when a metal complex containing heavy transition metal atoms (heavyatoms) such as Ir and Pt is used as a phosphorescent dopant, the light emission efficiency can be improved by 4 times as much as that of fluorescence.

Thus, the phosphorescent EL element theoretically exhibits higher efficiency than fluorescence in terms of luminous efficiency. However, unlike the green and red phosphorescent elements, the blue phosphorescent element has insufficient development level of a deep blue color purity, a highly efficient phosphorescent dopant, and a wide-gap host, and has not yet been commercialized, and instead, a blue fluorescent element has to be used in products.

Since the performance of organic EL devices has been improved to commercial characteristics due to the introduction of multilayer laminated structures, there is a need to expand the range of applications to portable information display devices and display devices for TVs, including automobile radio display products in 1997.

In addition, in recent years, with the trend toward larger displays and higher resolutions, development of organic EL elements having higher efficiency and longer life has been demanded. In particular, the high resolution of the display is realized when more pixels are formed in the same area. Due to such high resolution, the light-emitting area of the organic EL pixel is reduced, and as a result, the lifetime is shortened. This is the most important technical problem that the organic EL device has to overcome.

However, since the glass transition temperature of the material of the conventional organic EL element is low and the thermal stability is low, the material has not yet reached a satisfactory level in terms of the lifetime of the organic electroluminescent element, and improvement in the light emission characteristics is also required.

Disclosure of Invention

Technical subject

The present invention aims to provide a novel compound which has excellent carrier transport ability, light-emitting ability, and the like and can be used as a light-emitting layer material, a hole transport layer material, a light-emitting auxiliary layer material, an electron transport auxiliary layer material, and the like.

Another object of the present invention is to provide an organic electroluminescent element having a low driving voltage, a high light emission efficiency, and an improved lifetime, by including the novel compound.

Means for solving the problem

The present invention provides a compound represented by the following chemical formula 1:

chemical formula 1

In the chemical formula 1 described above,

chemical formula 2

In the chemical formula 2 described above, the,

the dotted line is a moiety bound to the above chemical formula 1,

X₁selected from the group consisting of N (Ar)₁)、O、S、C(Ar₂)(Ar₃) And Si (Ar)₄)(Ar₅) A group of components selected from the group consisting of,

Y₁to Y₄Each independently is N or C (R)₉)，

Ar₁To Ar₅Are the same or different from each other and can be independently selected from C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

r not forming the condensed ring of the above chemical formula 2₁To R₈And R₉Are identical or different from one another and can each independently be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron ofBase, C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

ar above₁To Ar₅And R₁To R₉The alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylsilyl, arylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylamine groups of (a) can each independently be selected from the group consisting of deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where one or more substituents selected from the group consisting of arylamine groups of (a) are substituted or unsubstituted, the substituents may combine with adjacent groups to form a condensed ring, and when the substituents are plural, they may be the same or different from each other.

In addition, the present invention provides an organic electroluminescent element comprising an anode, a cathode, and one or more organic layers interposed between the anode and the cathode, wherein at least one of the one or more organic layers comprises the compound represented by the following chemical formula 1.

Effects of the invention

The compound of the present invention is excellent in thermal stability, carrier transport ability, light-emitting ability, and the like, and therefore can be effectively used as an organic layer material for an organic electroluminescent element.

In addition, an organic electroluminescent element in which the compound of the present invention is contained in an organic layer can be greatly improved in light-emitting performance, driving voltage, life, efficiency, and the like, and thus can be effectively applied to a full-color display panel and the like.

Detailed Description

The present invention will be explained below.

The organic compound of the present invention is characterized by containing an indole moiety (indole moiety), a benzothiophene moiety, a benzofuran moiety or the like and dibenzo-p-xyleneAlkene (dibenzo [ b, e ]][1,4]dioxine) to form a basic skeleton, and a structure in which a plurality of substituents are bonded to or condensed with such a basic skeleton is represented by the above chemical formula 1.

In general, in an organic layer included in an organic electroluminescent device, a phosphorescent light-emitting layer includes a host and a dopant to increase color purity and increase light-emitting efficiency. At this time, the triplet energy gap of the host should be higher than that of the dopant. That is, in order for the dopant to efficiently emit phosphorescence, the energy of the lowest excited state of the host should be higher than the energy of the lowest released state of the dopant. In the case of the compound represented by the above chemical formula 1, dibenzo-p-dioxanThe alkene portion has a broad singlet energy level and a high triplet energy level. By reaction with such dibenzo-p-diWhen a specific substituent is introduced into an indole moiety of the ene condensation, etc., and the compound of the above chemical formula 1 is used as a host of the light-emitting layer, an energy level higher than that of the dopant can be exhibited.

Further, since the compound represented by the above chemical formula 1 has high triplet energy as described above, it is possible to prevent excitons (exitons) generated in the light-emitting layer from diffusing (moving) into the adjacent electron-transporting layer or hole-transporting layer. Therefore, in the case where an organic layer (hereinafter, referred to as "light-emitting auxiliary layer") is formed between the hole transport layer and the light-emitting layer or an organic layer (hereinafter, referred to as "electron transport auxiliary layer") is formed between the light-emitting layer and the electron transport layer using the compound of chemical formula 1, the compound prevents diffusion of excitons, and thus, unlike a conventional organic electroluminescent device that does not include the light-emitting auxiliary layer or the electron transport auxiliary layer, the number of excitons used for light emission in the light-emitting layer is actually increased, and the light-emitting efficiency of the device can be improved.

In addition, the compound represented by the above chemical formula 1 can have a wide band gap and high carrier transport properties by adjusting HOMO and LUMO energy levels according to the substituents introduced into the basic skeleton.

Further, the compounds of the present invention are due to dibenzo-p-dioxanSince the oxygen atom in the alkene has a high hole transport ability, it can be easily used as a hole transport layer material when an Electron Donating Group (EDG) having a large electron donating property is bonded to the basic skeleton. When an Electron Withdrawing Group (EWG) having a large electron withdrawing property is bonded to the basic skeleton, the entire molecule has a bipolar property and can improve the bonding force between holes and electrons.

In addition, the compound represented by chemical formula 1 of the present invention can have thermal stability higher than that of a conventional organic layer material (e.g., CBP) by increasing the molecular weight of the compound significantly by introducing various substituents, particularly aryl and/or heteroaryl groups, into the basic skeleton. Further, the compound represented by the above chemical formula 1 is also effective for inhibiting crystallization of the organic layer.

In this manner, when the compound represented by chemical formula 1 of the present invention is used as an organic material of an organic electroluminescent device, preferably a light emitting material (blue, green and/or red phosphorescent host material), an electron transporting layer/injecting layer material, a hole transporting layer/injecting layer material, a light emitting auxiliary layer material, a lifetime improving layer material, the performance and lifetime characteristics of the organic electroluminescent device can be greatly improved. As a result, the performance of a full-color organic light-emitting panel can be maximized by such an organic electroluminescent element.

R of the compound of the above chemical formula 1₁And R₂、R₂And R₃、R₃And R₄、R₄And R₅、R₅And R₆、R₆And R₇、R₇And R₈May be represented by any one selected from the following chemical formulas 3 to 5 when they are bonded to each other to form a condensed ring represented by the following chemical formula 2.

Chemical formula 3

Chemical formula 4

Chemical formula 5

In the above chemical formulas 3 to 5,

X₁、Y₁to Y₄And R₁To R₈Are respectively the same as defined in the above chemical formula 1.

R not forming the condensed ring of the above chemical formula 2₁To R₈Are identical or different from one another and can each independently be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by combining with an adjacent group.

In chemical formula 2, the dotted line means a portion bonded to chemical formula 1.

X is above₁Can be selected from N (Ar)₁)、O、S、C(Ar₂)(Ar₃) And Si (Ar)₄)(Ar₅) Preferably selected from the group consisting of N (Ar)₁) O and S.

Ar above₁To Ar₅Are the same or different from each other and can be independently selected from C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by combining with an adjacent group.

Preferably, Ar is₁To Ar₅Are the same or different from each other and can be independently selected from C₆～C₆₀And heteroaryl having a nuclear number of 5 to 60.

Y is above₁To Y₄May each independently be N or C (R)₉) Preferably all are C (R)₉). At this time, C (R)₉) In the case of a plurality of them, they may be the same or different from each other.

R is as defined above₉Can be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by combining with an adjacent group.

Preferably, R is as defined above₉Can be selected from hydrogen, deuterium (D), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60 and C₆～C₆₀Arylamine groups of (a).

Ar above₁To Ar₅R not forming a condensed ring of the above chemical formula 2₁To R₈And R₉The alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylsilyl, arylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylamine groups of (a) can each independently be selected from the group consisting of deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀And one or more substituents selected from the group consisting of arylamine groups of (a) or (b) are substituted or unsubstituted, and the substituents may combine with an adjacent group to form a condensed ring. In this case, when a plurality of the substituents are present, they may be the same or different from each other.

Further, Ar is₁To Ar₅R not forming a condensed ring of the above chemical formula 2₁To R₈And R₉At least one of (1), preferably Ar₁To Ar₅And R₉At least one of them may be a substituent represented by the following chemical formula 6.

Chemical formula 6

In the chemical formula 6 above, the first and second,

L₁may be a single bond (direct bond), or selected from the group consisting of C₆～C₁₈And heteroarylene having a nucleus number of 5 to 18, or with an adjacent substituent (e.g. R)_a、R_b) Are combined to form a condensed ring,

R_aand R_bAre the same or different from each other and can be independently selected from C₁～C₄₀Alkyl of (C)₆～C₆₀Or a substituent represented by the following chemical formula 7 or 8, or an adjacent substituent (e.g., L)₁) Are combined to form a condensed ring,

chemical formula 7

Chemical formula 8

In the above-described chemical formulas 7 and 8,

x and Y are each a six-membered (memned) aromatic ring,

L₁₁and L₁₂Each is a single bond, or is selected from C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

Ar₆selected from the group consisting of C₆～C₁₈Aryl and heteroaryl with a nuclear number of 5 to 18,

a. b and d are each an integer of 0 to 4, and when a, b and d are 0, they represent hydrogen unsubstituted R_c、R_dOr R_fAnd when a, b and d are each an integer of 1 to 4, R_c、R_dAnd R_fEach independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

c is an integer of 0 to 3, and when c is 0, it represents hydrogen unsubstituted R_cAnd when c is 1 to 3, R_cSelected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

l above₁Arylene, heteroarylene and R of_aAnd R_bThe alkyl, aryl, heteroaryl of (A) can each independently be selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where the aryl group is substituted or unsubstituted, when the substituent is plural, they may be the same or different from each other.

Further, Ar₁To Ar₅Without forming the condensation of the above chemical formula 2R of the ring₁To R₈And R₉At least one of (1), preferably Ar₁To Ar₅And R₉At least one of them may be a substituent represented by the following chemical formula 9.

Chemical formula 9

In the chemical formula 9 above, the first and second,

L₂is a single bond (direct bond), or is selected from the group consisting of C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

Z₁to Z₅Are the same or different from each other and are each independently N or C (R)₁₁)，

At this time, Z₁To Z₅At least one of which is N,

c (R) above₁₁) In the case of a plurality of them, they may be the same as or different from each other,

l above₂Arylene, heteroarylene and R as defined above₁₁Alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkane ofOxy, cycloalkyl, heterocycloalkyl, arylamino, alkylsilyl, alkylboronyl, arylboronyl, arylphosphino, arylphosphinoxide and arylsilyl groups may each be independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where the aryl group is substituted or unsubstituted, when the substituent is plural, they may be the same or different from each other.

Further, Ar is₁To Ar₅R not forming a condensed ring of the above chemical formula 2₁To R₈And R₉At least one of (1), preferably Ar₁To Ar₅And R₉At least one of them may be selected from the group consisting of substituents represented by the following chemical formulas A-1 to A-15.

In the above chemical formulae A-1 to A-15,

L₂and R₁₁Respectively as defined in the above chemical formula 9,

n is an integer of 0 to 4, and when n is 0, it represents hydrogen unsubstituted R₂₁And when n is an integer of 1 to 4, R₂₁Can be selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylsilyl group of (a) or a condensed ring formed by bonding to an adjacent group,

r is as defined above₂₁The alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkoxy, cycloalkyl, heterocycloalkyl, arylamine, alkylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylsilyl groups of (a) can each independently be selected from the group consisting of deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where the aryl group is substituted or unsubstituted, when the substituent is plural, they may be the same or different from each other.

At this time, Ar is₁To Ar₅R not forming a condensed ring of the above chemical formula 2₁To R₈And R₉At least one of (1), preferably Ar₁To Ar₅And R₉At least one of them may be a substituent represented by the following chemical formula 10 or 11.

Chemical formula 10

Chemical formula 11

In the above-described chemical formulas 10 and 11,

L₃and L₄Each independently a single bond (direct bond), or is selected from the group consisting of C₆～C₁₈And a heteroarylene group having a nuclear number of 5 to 18,

at this time, N (R) is mentioned above₁₆) In the case of a plurality of them, they may be the same as or different from each other,

R₁₆can be selected from hydrogen, deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Aryl of (2)Silyl groups, or groups that combine with adjacent groups to form a condensed ring,

e is an integer of 0 to 3, and when e is 0, it represents hydrogen unsubstituted R₁₂And when e is 1 to 3, R₁₂Selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀(ii) an arylsilyl group of (a),

f. g and h are integers from 0 to 4, and when f, g and h are each 0, it means that hydrogen is unsubstituted by a substituent R₁₃、R₁₄Or R₁₅And when f, g and h are each an integer of 1 to 4, R₁₃To R₁₅Each independently selected from deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Arylamino group of (C)₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Arylsilyl group of，

At this time, L is as defined above₃And L₄Arylene, heteroarylene and R as defined above₁₂To R₁₆The alkyl, alkenyl, alkynyl, aryl, heteroaryl, aryloxy, alkoxy, cycloalkyl, heterocycloalkyl, arylamine, alkylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylsilyl groups of (a) can each independently be selected from the group consisting of deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkoxy group of (C)₆～C₆₀Arylamino group of (C)₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₁～C₄₀Alkylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where the aryl group is substituted or unsubstituted, when the substituent is plural, they may be the same or different from each other.

In the above chemical formula 1, X is₁Can be N (Ar)₁). At this time, Ar is₁As defined in the above chemical formula 1, it may be preferably a substituent represented by the following chemical formula 12:

chemical formula 12

In the chemical formula 12 as described above,

L₅is a single bond or is selected from the group consisting of C₆～C₆₀Is a group consisting of arylene groups of (a),

m is an integer of 1 to 2,

a is a six-membered (membered) aromatic ring,

x is an integer of 0 to 2, and when x is 0, it represents hydrogen unsubstituted R₃₁And when x is an integer of 1 to 2, R₃₁Can be selected from deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b) or a condensed ring formed by bonding to an adjacent group, in which case R is as defined above₃₁In the case of a plurality of them, they may be the same as or different from each other,

Y₅to Y₈Each independently is N or C (R)₃₆) At this time, C (R)₃₆) In the case of a plurality of them, they may be the same as or different from each other,

R₃₂to R₃₆Are identical or different from one another and can each independently be selected from hydrogen, deuterium (D), halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀OfRadical phosphino radical, C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀Or an arylamine group of (b), or a condensed ring formed by bonding to an adjacent group,

l above₅Arylene of (A) and R₃₁To R₃₆The alkyl, alkenyl, alkynyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkoxy, aryloxy, alkylsilyl, arylsilyl, alkylboryl, arylboryl, arylphosphino, arylphosphinoxide and arylamine groups of (a) can each independently be selected from the group consisting of deuterium, halogen, cyano, nitro, C₁～C₄₀Alkyl of (C)₂～C₄₀Alkenyl of, C₂～C₄₀Alkynyl of (A), C₃～C₄₀Cycloalkyl of (2), heterocycloalkyl of atomic number 3 to 40, C₆～C₆₀Aryl of (2), heteroaryl of atomic number 5 to 60, C₁～C₄₀Alkoxy group of (C)₆～C₆₀Aryloxy group of (A), C₁～C₄₀Alkylsilyl group of (C)₆～C₆₀Arylsilyl group of (C)₁～C₄₀Alkyl boron group of (2), C₆～C₆₀Aryl boron group of (1), C₆～C₆₀Aryl phosphine group of (A), C₆～C₆₀Aryl phosphine oxide group of and C₆～C₆₀In the case where the aryl group is substituted or unsubstituted, the substituent may be bonded to an adjacent group to form a condensed ring, and in the case where a plurality of the substituents are present, they may be the same or different from each other.

Specifically, the substituent represented by the above chemical formula 12 may be a substituent represented by any one of the following chemical formulae 13 to 15:

chemical formula 13

Chemical formula 14

Chemical formula 15

In the above-mentioned chemical formulas 13 to 15,

L₅、Y₅to Y₈、R₃₁To R₃₅Are respectively the same as defined in the above chemical formula 12.

The compound of chemical formula 1 of the present invention may be embodied as the following exemplified compounds, but is not limited thereto.

The "unsubstituted alkyl group" used in the present invention refers to a monovalent functional group obtained by removing a hydrogen atom from a straight-chain or branched saturated hydrocarbon having 1 to 40 carbon atoms, and non-limiting examples thereof include methyl, ethyl, propyl, isobutyl, sec-butyl, pentyl, isopentyl, hexyl and the like.

The "unsubstituted alkenyl" used in the present invention means a monovalent functional group obtained by removing a hydrogen atom from a linear or branched unsaturated hydrocarbon having 2 to 40 carbon atoms and having one or more carbon-carbon double bonds. As non-limiting examples thereof, there are vinyl (vinyl), allyl (allyl), isopropenyl (isopropenyl), 2-butenyl (2-butenyl) and the like.

The "unsubstituted alkynyl" used in the present invention means a monovalent functional group obtained by removing a hydrogen atom from a linear or branched unsaturated hydrocarbon having 2 to 40 carbon atoms and having one or more carbon-carbon triple bonds. As non-limiting examples thereof, there are ethynyl (ethyl), 2-propynyl (2-propyl) and the like.

The "unsubstituted cycloalkyl group" used in the present invention refers to a monovalent functional group obtained by removing a hydrogen atom from a monocyclic or polycyclic non-aromatic hydrocarbon (saturated cyclic hydrocarbon) having 3 to 40 carbon atoms. As non-limiting examples thereof, there are cyclopropyl, cyclopentyl, cyclohexyl, norbornyl (norbonyl), adamantyl (adamantine), and the like.

The "unsubstituted heterocycloalkyl group" used in the present invention is a monovalent functional group obtained by removing a hydrogen atom from a non-aromatic hydrocarbon (saturated cyclic hydrocarbon) having a nuclear number of 3 to 40, and one or more carbons, preferably 1 to 3 carbons, in the ring are substituted with a heteroatom such as N, O, Se or S. As non-limiting examples thereof, there are morpholinyl, piperidinyl and the like.

The "unsubstituted aryl group" used in the present invention refers to a monovalent functional group obtained by removing a hydrogen atom from a single ring or an aromatic hydrocarbon having 6 to 60 carbon atoms and having two or more rings combined. In this case, two or more rings may be attached to each other in a simple form or in a condensed form. As non-limiting examples thereof, there are phenyl, biphenyl, terphenyl (terphenyl), naphthyl, phenanthryl, anthryl and the like.

The "unsubstituted heteroaryl group" used in the present invention is a monovalent functional group obtained by removing a hydrogen atom from a mono-or poly-heterocyclic aromatic hydrocarbon having an atomic number of 5 to 60, and one or more carbons, preferably 1 to 3 carbons, in the ring are substituted with a heteroatom such as nitrogen (N), oxygen (O), sulfur (S), or selenium (Se). In this case, two or more rings of the heteroaryl group may be attached to each other simply or in a condensed form, and may further include a form condensed with the aryl group. Non-limiting examples of such heteroaryl groups include six-membered monocyclic rings such as pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl and the like; phenPolycyclic rings such as thienyl (phenoxathienyl), indolizinyl (indolizinyl), indolyl (indoliyl), purinyl (purinyl), quinolyl (quinolyl), benzothiazolyl (benzothiazolyl), carbazolyl (carbazolyl), and the like; and 2-furyl, N-imidazolyl, 2-isofurylOxazolyl, 2-pyridyl, 2-pyrimidyl and the like.

The "unsubstituted alkoxy" used in the present invention means a monovalent functional group represented by RO-, and the R is an alkyl group having 1 to 40 carbon atoms and may have a linear (linear), branched (branched) or cyclic (cyclic) structure. Non-limiting examples of such alkoxy groups include methoxy, ethoxy, n-propoxy, 1-propoxy, t-butoxy, n-butoxy, pentoxy and the like.

As used herein, "unsubstituted aryloxy" refers to a monovalent functional group represented by R 'O-, wherein R' is an aryl group having 6 to 60 carbon atoms. As non-limiting examples of such aryloxy groups, there are phenoxy, naphthoxy, diphenoxy, and the like.

As used herein, "unsubstituted alkylsilyl group" means a silyl group substituted with an alkyl group having 1 to 40 carbon atoms, "unsubstituted arylsilyl group" means a silyl group substituted with an aryl group having 6 to 40 carbon atoms, "unsubstituted alkylboryl group" means a boryl group substituted with an alkyl group having 1 to 40 carbon atoms, "unsubstituted arylboryl group" means a boryl group substituted with an aryl group having 6 to 60 carbon atoms, "unsubstituted arylphosphino group" means a phosphino group substituted with an aryl group having 1 to 60 carbon atoms, and "unsubstituted arylamino group" means an amine group substituted with an aryl group having 6 to 60 carbon atoms.

The term "condensed ring" as used herein refers to a condensed aliphatic ring, a condensed aromatic ring, a condensed aliphatic heterocyclic ring, a condensed aromatic heterocyclic ring, or a combination thereof.

The compound of chemical formula 1 of the present invention can be synthesized according to a conventional synthesis method (see chem. Rev., 60: 313 (1960); J.chem. SOC.4482 (1955); chem. Rev. 95: 2457(1995) and the like). The detailed synthetic procedure of the compound of the present invention will be specifically described in the synthetic examples described later.

In another aspect, the present invention provides an organic electroluminescent device comprising the compound represented by chemical formula 1.

Specifically, the organic electroluminescent element of the present invention comprises an anode, a cathode, and one or more organic layers interposed between the anode and the cathode, wherein at least one of the organic layers comprises the compound represented by the above chemical formula 1. In this case, the compounds represented by the above chemical formula 1 may be used alone or in combination of two or more.

According to an example of the present invention, the one or more organic layers include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, wherein at least one of the organic layers includes the compound represented by chemical formula 1, and preferably, the light emitting layer or the hole transport layer includes the compound represented by chemical formula 1. In particular, when the compound represented by the above chemical formula 1 is included in an organic electroluminescent element as a light-emitting layer material, the light-emitting efficiency, luminance, power efficiency, thermal stability, and element lifetime of the organic electroluminescent element can be improved.

For example, the compound represented by the above chemical formula 1 may be a phosphorescent host, a fluorescent host or a dopant material of the light emitting layer, and is preferably a phosphorescent host of the light emitting layer.

According to another example of the present invention, the one or more organic layers include a hole injection layer, a hole transport layer, a light emission auxiliary layer, a light emitting layer, an electron transport layer, and an electron injection layer, and in this case, at least one organic layer, preferably the light emission auxiliary layer, may include the compound of chemical formula 1. In particular, when the compound of chemical formula 1 is used as a light-emitting auxiliary layer material of an organic electroluminescent element, the efficiency (light-emitting efficiency and power efficiency), lifetime, luminance, driving voltage, and the like of the organic electroluminescent element can be improved.

According to still another example of the present invention, the one or more organic layers include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport auxiliary layer, an electron transport layer, and an electron injection layer, and in this case, at least one of the organic layers, preferably the electron transport auxiliary layer, may include the compound of chemical formula 1. In particular, when the compound of chemical formula 1 is used as an electron transport auxiliary layer material for an organic electroluminescent element, the efficiency (light emission efficiency and power efficiency), lifetime, luminance, driving voltage, and the like of the organic electroluminescent element can be improved.

The structure of the organic electroluminescent element of the present invention is not particularly limited, and may be, for example, the following: an anode, one or more organic layers, and a cathode are sequentially stacked on a substrate, and an insulating layer or an adhesive layer is interposed between the electrodes and the organic layers.

According to one example, the organic electroluminescent element may have a structure in which an anode, a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode are sequentially stacked on a substrate. Alternatively, a light-emitting auxiliary layer may be interposed between the hole-transporting layer and the light-emitting layer, or an electron-transporting auxiliary layer may be interposed between the light-emitting layer and the electron-transporting layer. Further, an electron injection layer may be provided on the electron transport layer.

The organic electroluminescent element of the present invention can be manufactured by forming an organic layer and an electrode using materials and methods known in the art, in addition to forming at least one of the above one or more organic layers (for example, a light-emitting layer or a light-emitting auxiliary layer) including the compound represented by chemical formula 1.

The organic layer may be formed by a vacuum evaporation method or a solution coating method. Examples of the solution coating method include, but are not limited to, spin coating, dip coating, blade coating, ink-jet printing, and thermal transfer.

Examples of the substrate usable in the present invention include, but are not limited to, silicon wafers, quartz or glass plates, metal plates, plastic films or sheets, and the like.

Further, as examples of the anode material, there are metals such as vanadium, chromium, copper, zinc, gold, and alloys thereof; metal oxides such as zinc oxide, Indium Tin Oxide (ITO), and Indium Zinc Oxide (IZO); ZnO-Al or SnO₂A combination of a metal such as Sb and an oxide; polythiophenes, poly (3-methylthiophenes), poly [3,4- (ethylene-1, 2-dioxy) thiophenes]Conductive polymers such as (PEDT), polypyrrole, and polyaniline; or carbon black, etc., but not limited thereto.

Examples of the cathode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin, and lead, and alloys thereof; LiF/Al or LiO₂Multi-layer structure material such as Al, etc., but not limited thereto.

Further, the substance used for the hole injection layer, the hole transport layer, the electron injection layer, and the electron transport layer is not particularly limited as long as it is a general substance known in the art.

The present invention will be described in detail below with reference to examples, but the following examples merely illustrate the present invention and the present invention is not limited to the following examples.

PREPARATION EXAMPLE 1 Synthesis of Compounds Inv1 and Inv2

<Step 1>2- (dibenzo-p-dioxan) Combination of en-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan Become into

2-bromo dibenzo-p-diAlkene (100g, 0.38mol), bis (pinacolato) diboron (115.8g, 0.46mol), Pd (dppf) Cl₂(31g, 0.038mol) and KOAc (111.9g, 1.14mol) were added to the flask, and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain compound 2- (dibenzo-p-dioxan)En-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan (73g, 62% yield).

<Step 2>2- (2-nitrophenyl) dibenzo-p-dibenz Alkene synthesis

Mixing the above<Step 1>2- (dibenzo-p-dioxan) obtained in (1)Ene-2-) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan (73g, 0.235mol), 1-bromo-2-nitrobenzene (57g, 0.282mol) and Pd (PPh)₃)₄(13.5g, 0.011mol) was charged into a flask, to which was added 2M Na₂CO₃Saturated aqueous solution (352ml) and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 2- (2-nitrophenyl) dibenzo-p-dibenzAlkene (65g, yield 91%).

<Step 3>Synthesis of Compounds Inv1 and Inv2

Under the nitrogen gas flow, the above-mentioned<Step 2>2- (2-nitrophenyl) dibenzo-p-dibenz-n-butyl-phenylAlkene (65g, 0.212mol), triphenylphosphine (PPh)₃) (67g, 0.255mol) and 1, 2-dichlorobenzene (1L) were mixed and stirred for 12 hours. After the reaction was completed, 1, 2-dichlorobenzene was removed, and the organic layer was extracted with dichloromethane. The organic layer was washed with Na₂SO₄After drying and distillation under the reduced pressure, the product was purified by column chromatography to obtain compound Inv1(35g, yield 60%) and compound Inv2(12g, yield 20%).

PREPARATION EXAMPLE 2 Synthesis of Compounds Inv3 and Inv4

<Step 1>2- (dibenzo-p-dioxan) Combination of en-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan Become into

<Step 2>2- (5-chloro-2-nitrophenyl) dibenzo-p-dibenz Alkene synthesis

Mixing the above<Step 1>2- (dibenzo-p-dioxan) obtained in (1)En-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan (73g, 0.235mol), 2-bromo-4-chloro-1-nitrobenzene (67g, 0.282mol) and Pd (PPh)₃)₄(13.5g, 0.011mol) was charged into a flask, to which was added 2M Na₂CO₃Saturated aqueous solution (352ml) and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After the reaction is finished, adding distillationWater, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 2- (5-chloro-2-nitrophenyl) dibenzo-p-dibenzAlkene (72g, yield 91%).

<Step 3>Synthesis of Compounds Inv3 and Inv4

Under the nitrogen gas flow, the above-mentioned<Step 2>2- (5-chloro-2-nitrophenyl) dibenzo-p-dibenz-n-butyl ether obtained in (1)Alkene (72g, 0.212mol), triphenylphosphine (67g, 0.255mol) and 1, 2-dichlorobenzene (1L) were mixed and stirred for 12 hours. After the reaction was completed, 1, 2-dichlorobenzene was removed, and the organic layer was extracted with dichloromethane. The organic layer was washed with Na₂SO₄After drying and distillation under the reduced pressure, the product was purified by column chromatography to obtain compound Inv3(35g, yield 53%) and compound Inv4(23g, yield 35%).

PREPARATION EXAMPLE 3 Synthesis of Compounds Inv5 and Inv6

<Step 1>2- (dibenzo-p-dioxan) Combination of en-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan Become into

<Step 2>2- (4-chloro-2-nitrophenyl) dibenzo-p-dibenz Alkene synthesis

Mixing the above<Step 1>2- (Dibenzo-p-dibenz) obtained in (1)En-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan (73g, 0.235mol), 1-bromo-4-chloro-2-nitrobenzene (67g, 0.282mol) and Pd (PPh)₃)₄(13.5g, 0.011mol) was charged into a flask, to which was added 2M Na₂CO₃Saturated aqueous solution (352ml) and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 2- (4-chloro-2-nitrophenyl) dibenzo-p-dibenzAlkene (72g, yield 91%).

<Step 3>Synthesis of Compounds Inv5 and Inv6

Under the nitrogen gas flow, the above-mentioned<Step 2>2- (4-chloro-2-nitrophenyl) dibenzo-p-dibenz-n-butyl ether obtained in (1)Alkene (72g, 0.212mol), triphenylphosphine (67g, 0.255mol), and 1, 2-dichlorobenzene (1L) were mixed and stirred for 12 hours. After the reaction was completed, 1, 2-dichlorobenzene was removed, and the organic layer was extracted with dichloromethane. The organic layer was washed with Na₂SO₄After drying and distillation under the reduced pressure, the product was purified by column chromatography to obtain compound Inv5(35g, yield 53%) and compound Inv6(23g, yield 35%).

PREPARATION EXAMPLE 4 Synthesis of Compounds Inv7 and Inv8

<Step 1>2-bromo-7-phenyldibenzo-p-dibenz Alkene synthesis

2, 7-dibromo-dibenzo-p-dibenzAlkene (137g, 0.400mol), phenylboronic acid (49g, 0.400mol), and Pd (PPh)₃)₄(23.1g, 0.02mol) was charged into a flask, to which was added 2M Na₂CO₃Saturated aqueous solution (600ml) and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 2-bromo-7-phenyldibenzo-p-di-benzeneAlkene (129g, yield 95%).

<Step 2>4,4,5, 5-tetramethyl-2- (7-phenyldibenzo-p-dioxan-2-yl) benzene En-2-yl) -132-dioxaborolan Synthesis of (2)

Mixing the above<Step 1>2-bromo-7-phenyldibenzo-p-dibenz-ine obtained in (1)Alkene (129g, 0.38mol), bis (pinacolato) diboron (115.8g, 0.46mol), Pd (dppf) Cl₂(31g, 0.038mol) and KOAc (111.9g, 1.14mol) were added to the flask, and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 4,4,5, 5-tetramethyl-2- (7-phenyldibenzo-p-di-p-phenylene) compoundEn-2-yl) -1,3, 2-dioxaborolan (91g, 62% yield).

<Step 3>2- (5-chloro-2-nitrophenyl) -7-phenyldibenzo-p-dibenz Alkene synthesis

Mixing the above<Step 2>4,4,5, 5-tetramethyl-2- (7-phenyldibenzop-dib-ia) obtained in (1)En-2-yl) -1,3, 2-dioxaborolan (91g, 0.235mol), 2-bromo-4-chloro-1-nitrobenzene (67g, 0.282mol) and Pd (PPh)₃)₄(13.5g, 0.011mol) was charged into a flask, to which was added 2M Na₂CO₃Saturated aqueous solution (352ml) and 1, 4-bisAfter the alkane (2L) was dissolved, the mixture was stirred with heating for 8 hours. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. Subjecting the obtained organic matterLayer with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 2- (5-chloro-2-nitrophenyl) -7-phenyldibenzo-p-di-p-phenyleneAlkene (88g, yield 91%).

<Step 4>Synthesis of Compounds Inv7 and Inv8

Under the nitrogen gas flow, the above-mentioned<Step 3>2- (5-chloro-2-nitrophenyl) -7-phenyldibenzo-p-bis obtained in (1)Alkene (88g, 0.212mol), triphenylphosphine (67g, 0.255mol) and 1, 2-dichlorobenzene (1L) were mixed and stirred for 12 hours. After the reaction was completed, 1, 2-dichlorobenzene was removed, and the organic layer was extracted with dichloromethane. The organic layer was washed with Na₂SO₄After drying and distillation under the reduced pressure, the product was purified by column chromatography to obtain compound Inv7(43g, yield 53%) and compound Inv8(28g, yield 35%).

Synthesis example 1 Synthesis of Cpd1

The compound synthesized in preparation example 1, Inv1(2.7g, 10.0mmol) and N- (4 '-bromo- [1,1' -biphenyl]-4-yl) -N-phenylnaphthalene-2-amine (5.4g, 12.0mmol) was dissolved in 100ml of toluene, and Pd was charged under nitrogen₂(dba)₃(0.9g, 1.0 mmol). Thereafter, after adding NaOtBu (2.9g, 30mmol) thereto, (t-Bu)₃P (1.0ml, 1.0mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, Cpd 1(5.5g, yield 86%) was obtained by column chromatography.

HRMS[M]⁺:642.230

Synthesis example 2 Synthesis of Cpd 2

The same procedures as in synthesis example 1 above were carried out except for using 7-bromo-9, 9-dimethyl-N- (naphthalen-1-yl) -N-phenyl-9H-fluoren-2-amine (5.9g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 1 to obtain the objective compound Cpd 2(5.8g, yield 85%).

HRMS[M]⁺:682.262

[ Synthesis example 3] Synthesis of Cpd 3

The same procedures as in synthesis example 1 were carried out except for using N, N-di ([1,1' -biphenyl ] -4-yl) -4' -bromo- [1,1' -biphenyl ] -4-amine (6.6g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain Cpd 3(6.7g, yield 85%).

HRMS[M]⁺:744.277

[ Synthesis example 4] Synthesis of Cpd4

The same procedures as in synthesis example 1 above were carried out using N1- ([1,1' -biphenyl ] -4-yl) -N1- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N4, N4-diphenylbenzene-1, 4-diamine (7.7g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1, to obtain Cpd 4(6.7g, yield 81%).

HRMS[M]⁺:835.319

Synthesis example 5 Synthesis of Cpd5

The same procedures as in synthesis example 1 above were carried out except for using N- ([1,1' -biphenyl ] -4-yl) -N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -9, 9-dimethyl-9H-fluoren-2-amine (7.1g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 1 to obtain Cpd 5(6.9g, yield 88%).

HRMS[M]⁺:784.309

[ Synthesis example 6] Synthesis of Cpd 6

The same procedures as in synthesis example 1 above were carried out except for using N1- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N1- (9, 9-dimethyl-9H-fluoren-2-yl) -N4, N4-diphenylbenzene-1, 4-diamine (8.2g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain the objective compound Cpd 6(7.0g, yield 85%).

HRMS[M]⁺:875.351

Synthesis example 7 Synthesis of Cpd 7

The same procedures as in synthesis example 1 above were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4-bromophenyl) - [1,1' -biphenyl ] -4-amine (5.7g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain Cpd 7(5.7g, yield 86%) as a target compound.

HRMS[M]⁺:668.246

Synthesis example 8 Synthesis of Cpd8

The same procedures as in Synthesis example 1 above were carried out except for using N, N-bis ([1,1' -biphenyl ] -4-yl) -4 "-chloro- [1,1':4', 1" -terphenyl ] -4-amine (7.0g, 12.0mmol) in place of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in Synthesis example 1 to obtain the objective compound Cpd 8(6.9g, yield 85%).

HRMS[M]⁺:820.309

[ Synthesis example 9] Synthesis of Cpd 12

The same procedures as in synthesis example 1 above were carried out except for using 4 '-chloro-N, N-bis (4- (naphthalen-1-yl) phenyl) - [1,1' -biphenyl ] -4-amine (7.3g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain the objective compound Cpd 12(6.8g, yield 80%).

HRMS[M]⁺:844.309

Synthesis example 10 Synthesis of Cpd 13

The same procedures as in synthesis example 1 above were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4- (5- (4-bromophenyl) thiophen-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (7.6g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain Cpd 13(6.9g, yield 84%).

HRMS[M]⁺:826.265

Synthesis example 11 Synthesis of Cpd 14

The same procedures as in synthesis example 1 above were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4- (5- (4-chlorophenyl) furan-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (6.9g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain Cpd 14(7.0g, yield 86%).

HRMS[M]⁺:810.288

Synthesis example 12 Synthesis of Cpd 15

The same procedures as in synthesis example 1 above were carried out except for using N, N-bis ([1,1' -biphenyl ] -4-yl) -6-bromonaphthalene-2-amine (6.3g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain the objective compound Cpd 15(6.4g, yield 89%).

HRMS[M]⁺:718.262

[ Synthesis example 13] Synthesis of Cpd 16

The same procedures as in synthesis example 1 above were carried out except for using N- ([1,1' -biphenyl ] -4-yl) -N- (4' -bromo- [1,1' -biphenyl ] -4-yl) phenanthren-9-amine (6.9g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 1 to obtain the objective compound Cpd 16(6.4g, yield 83%).

HRMS[M]⁺:867.277

Synthesis example 14 Synthesis of Cpd 17

The same procedures as in synthesis example 1 above were carried out using N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N- (9, 9-dimethyl-9H-fluoren-2-yl) phenanthrene-2-amine (7.4g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 1 to obtain the objective compound Cpd 17(6.8g, yield 85%).

HRMS[M]⁺:808.309

Synthesis example 15 Synthesis of Cpd 18

The same procedures as in Synthesis example 1 above were carried out except for using N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenyl- [1,1':4',1 "-terphenyl ] -4-amine (6.6g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in Synthesis example 1 to obtain the objective compound Cpd 18(6.5g, yield 88%).

HRMS[M]⁺:744.277

Synthesis example 16 Synthesis of Cpd 22

The compound synthesized in preparation example 1, Inv2(2.7g, 10.0mmol) and N- (4 '-bromo- [1,1' -biphenyl]-4-yl) -N-phenylnaphthalen-2-amine (5.4g, 12.0mmol) dissolved in toluene (100ml) and Pd was charged under nitrogen₂(dba)₃(0.9g, 1.0 mmol). Thereafter, after adding NaOtBu (2.9g, 30mmol) thereto, (t-Bu)₃P (1.0ml, 1.0mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, compound Cpd 22(5.5g, yield 86%) was obtained by column chromatography.

HRMS[M]⁺:642.230

[ Synthesis example 17] Synthesis of Cpd 23

The same procedures as in synthesis example 16 above were carried out except for using 7-bromo-9, 9-dimethyl-N- (naphthalen-1-yl) -N-phenyl-9H-fluoren-2-amine (5.9g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 16 to obtain the objective compound Cpd 23(5.8g, yield 85%).

HRMS[M]⁺:682.262

[ Synthesis example 18] Synthesis of Cpd 24

The same procedures as in synthesis example 16 were carried out except for using N, N-bis ([1,1' -biphenyl ] -4-yl) -4' -bromo- [1,1' -biphenyl ] -4-amine (6.6g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain Cpd 24(6.7g, yield 85%) as a target compound.

HRMS[M]⁺:744.277

[ Synthesis example 19] Synthesis of Cpd 25

The same procedures as in synthesis example 16 above were carried out using N1- ([1,1' -biphenyl ] -4-yl) -N1- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N4, N4-diphenylbenzene-1, 4-diamine (7.7g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain the objective compound Cpd 25(6.7g, yield 81%).

HRMS[M]⁺:835.319

Synthesis example 20 Synthesis of Cpd 26

The same procedures as in synthesis example 16 above were carried out except for using N- ([1,1' -biphenyl ] -4-yl) -N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -9, 9-dimethyl-9H-fluoren-2-amine (7.1g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 16 to obtain the objective compound Cpd 26(6.9g, yield 88%).

HRMS[M]⁺:784.309

Synthesis example 21 Synthesis of Cpd 27

The same procedures as in synthesis example 16 above were carried out except for using N1- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N1- (9, 9-dimethyl-9H-fluoren-2-yl) -N4, N4-diphenylbenzene-1, 4-diamine (8.2g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain the objective compound Cpd 27(7.0g, yield 85%).

HRMS[M]⁺:875.351

Synthesis example 22 Synthesis of Cpd 28

The same procedures as in synthesis example 16 were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4-bromophenyl) - [1,1' -biphenyl ] -4-amine (5.7g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain Cpd 28(5.7g, yield 86%) as a target compound.

HRMS[M]⁺:668.246

[ Synthesis example 23] Synthesis of Cpd 29

The same procedures as in Synthesis example 16 above were carried out using N, N-bis ([1,1' -biphenyl ] -4-yl) -4 "-chloro- [1,1':4', 1" -terphenyl ] -4-amine (7.0g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in Synthesis example 16 to obtain the objective compound Cpd 29(6.9g, yield 85%).

HRMS[M]⁺:820.309

[ Synthesis example 24] Synthesis of Cpd 33

The same procedures as in synthesis example 16 above were carried out except for using 4 '-chloro-N, N-bis (4- (naphthalen-1-yl) phenyl) - [1,1' -biphenyl ] -4-amine (7.3g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain the objective compound Cpd 33(6.8g, yield 80%).

HRMS[M]⁺:844.309

Synthesis example 25 Synthesis of Cpd 34

The same procedures as in synthesis example 16 above were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4- (5- (4-bromophenyl) thiophen-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (7.6g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain Cpd 34(6.9g, yield 84%).

HRMS[M]⁺:826.265

Synthesis example 26 Synthesis of Cpd 35

The same procedures as in synthesis example 16 above were carried out except for using N- ([1,1 '-biphenyl ] -4-yl) -N- (4- (5- (4-chlorophenyl) furan-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (6.9g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain Cpd 35(7.0g, yield 86%) as a target compound.

HRMS[M]⁺:810.288

Synthesis example 27 Synthesis of Cpd 36

The same procedures as in synthesis example 16 above were carried out except for using N, N-bis ([1,1' -biphenyl ] -4-yl) -6-bromonaphthalene-2-amine (6.3g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain Cpd 36(6.4g, yield 89%).

HRMS[M]⁺:718.262

Synthesis example 28 Synthesis of Cpd 37

The same procedures as in synthesis example 16 above were carried out except for using N- ([1,1' -biphenyl ] -4-yl) -N- (4' -bromo- [1,1' -biphenyl ] -4-yl) phenanthren-9-amine (6.9g, 12.0mmol) instead of N- (4' -bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 16 to obtain the objective compound Cpd 37(6.4g, yield 83%).

HRMS[M]⁺:867.277

[ Synthesis example 29] Synthesis of Cpd 38

The same procedures as in synthesis example 16 above were carried out using N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N- (9, 9-dimethyl-9H-fluoren-2-yl) phenanthrene-2-amine (7.4g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalen-2-amine used in synthesis example 16 to obtain the objective compound Cpd 38(6.8g, yield 85%).

HRMS[M]⁺:808.309

[ Synthesis example 30] Synthesis of Cpd 39

The same procedures as in Synthesis example 16 above were carried out except for using N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenyl- [1,1':4',1 "-terphenyl ] -4-amine (6.6g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in Synthesis example 16 to obtain the objective compound Cpd 39(6.5g, yield 88%).

HRMS[M]⁺:744.277

Synthesis example 31 Synthesis of Cpd19

<Step 1>2- (dibenzo-p-dioxan) Combination of en-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan Become into

The compound synthesized in preparation example 2, Inv3(3.1g, 10.0mmol), 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl]-4-amine (4.8g, 12.0mmol) dissolved in formazanAfter benzene (100ml), Pd was charged under nitrogen₂(dba)₃(0.9g, 1.0 mmol). Thereafter, after adding NaOtBu (2.9g, 30mmol) thereto, (t-Bu)₃P (1.0ml, 1.0mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain compound 4' - (2-chloro-5H-benzo [5, 6]][1,4]IIEno [2,3-b ]]Carbazol-5-yl) -N, N-diphenyl- [1,1' -biphenyl]-4-amine (4.8g, yield 77%).

<Step 2>Synthesis of Cpd19

Adding the above<Step 1>4' - (2-chloro-5H-benzo [5, 6) obtained in (1)][1,4]IIEno [2,3-b ]]Carbazol-5-yl) -N, N-diphenyl- [1,1' -biphenyl]-4-amine (4.8g, 7.70mmol), phenylboronic acid (1.18g, 9.67mmol), NaOH (1.06g, 26.4mmol) and THF/H₂O (100ml/50ml) and stirred. Thereafter, Pd (PPh) was added at 40 ℃₃)₄(5 mol%, 0.51g), and stirred at 80 ℃ for 12 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, Cpd19 (4.1g, yield 80%) was obtained by column chromatography.

HRMS[M]⁺:668.246

[ Synthesis example 32] Synthesis of Cpd 21

The same procedures as in synthesis example 31 above were carried out except for using N, N-bis ([1,1' -biphenyl ] -4-yl) -4' -bromo- [1,1' -biphenyl ] -4-amine (6.6g, 12.0mmol) instead of 4' -bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 to obtain the objective compound Cpd 21(5.3g, yield 64%).

HRMS[M]⁺:820.309

Synthesis example 33 Synthesis of Cpd 40

The same procedures as in synthesis example 31 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of compound Inv3 used in synthesis example 31 to obtain the target compound Cpd 40(4.1g, yield 65%).

HRMS[M]⁺:668.246

Synthesis example 34 Synthesis of Cpd42

The same procedures as in synthesis example 32 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 in place of Inv3 used in synthesis example 32 to obtain the target compound Cpd42(4.9g, yield 60%).

HRMS[M]⁺:820.309

Synthesis example 35 Synthesis of Cpd 46

The same procedure as in synthesis example 31 was carried out, except for using iodobenzene (2.4g, 12.0mmol) instead of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 and using N- ([1,1 '-biphenyl ] -4-yl) -N- (4- (4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (5.1g, 9.67mmol) instead of phenylboronic acid, to obtain the objective compound Cpd 46(4.5g, yield 60%).

HRMS[M]⁺:744.277

Synthesis example 36 Synthesis of Cpd 47

The same procedures as in synthesis example 31 above were carried out except for using iodobenzene (2.4g, 12.0mmol) instead of 4' -bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 and using N- ([1,1' -biphenyl ] -4-yl) -9, 9-dimethyl-N- (4- (4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) -9H-fluoren-2-amine (5.4g, 9.67mmol) instead of phenylboronic acid to obtain the objective compound Cpd 47(4.5g, yield 58%).

HRMS[M]⁺:784.309

[ Synthesis example 37] Synthesis of Cpd 49

The same procedures as in synthesis example 31 were carried out except for using iodobenzene (2.4g, 12.0mmol) instead of 4' -bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 and using N, N-bis ([1,1' -biphenyl ] -4-yl) -4' - (4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) - [1,1' -biphenyl ] -4-amine (5.8g, 9.67mmol) instead of phenylboronic acid to obtain the objective compound Cpd 49(5.2g, yield 63%).

HRMS[M]⁺:820.309

Synthesis example 38 Synthesis of Cpd51

The same procedure as in synthesis example 31 above was carried out except for using 4-bromo-1, 1' -biphenyl (2.8g, 12.0mmol) instead of 4' -bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 and using N- ([1,1' -biphenyl ] -4-yl) -N- (4- (4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) - [1,1' -biphenyl ] -4-amine (5.1g, 9.67mmol) instead of phenylboronic acid to obtain the objective compound Cpd51(5.6g, yield 68%).

HRMS[M]⁺:820.309

Synthesis example 39 Synthesis of Cpd 52

The same procedures as in synthesis example 31 above were carried out except for using iodobenzene (2.4g, 12.0mmol) instead of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 and using N- (9, 9-dimethyl-9H-fluoren-2-yl) -N- (4- (4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan-2-yl) phenyl) phenanthrene-2-amine (5.7g, 9.67mmol) instead of phenylboronic acid to obtain the objective compound Cpd 52(4.6g, yield 57%).

HRMS[M]⁺:808.309

Synthesis example 40 Synthesis of Cpd 54

The same procedures as in synthesis example 35 were carried out except for using compound Inv5(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 35, to obtain the target compound Cpd 54(4.5g, yield 60%).

HRMS[M]⁺:744.277

Synthesis example 41 Synthesis of Cpd 55

The same procedures as in synthesis example 36 were carried out except for using the compound Inv5(3.1g, 10.0mmol) synthesized in preparation example 3 instead of the compound Inv3 used in synthesis example 36, to obtain the target compound Cpd 55(4.5g, yield 58%).

HRMS[M]⁺:784.309

[ Synthesis example 42] Synthesis of Cpd 57

The same procedures as in synthesis example 37 were carried out except for using the compound Inv5(3.1g, 10.0mmol) synthesized in preparation example 3 in place of the compound Inv3 used in synthesis example 37, to obtain the target compound Cpd 57(5.2g, yield 63%).

HRMS[M]⁺:820.309

Synthesis example 43 Synthesis of Cpd 60

The same procedures as in synthesis example 39 were carried out except for using compound Inv5(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 39, to obtain the target compound Cpd 60(4.6g, yield 57%).

HRMS[M]⁺:808.309

Synthesis example 44 Synthesis of Cpd 70

The same procedures as in synthesis example 35 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of compound Inv3 used in synthesis example 35, to obtain the target compound Cpd 70(4.5g, yield 60%).

HRMS[M]⁺:744.277

[ Synthesis example 45] Synthesis of Cpd 71

The same procedures as in synthesis example 36 were carried out except for using the compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of the compound Inv3 used in synthesis example 36, to obtain the target compound Cpd 71(4.5g, yield 58%).

HRMS[M]⁺:784.309

Synthesis example 46 Synthesis of Cpd 73

The same procedures as in synthesis example 37 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 in place of compound Inv3 used in synthesis example 37, to obtain the objective compound Cpd 73(5.2g, yield 63%).

HRMS[M]⁺:820.309

Synthesis example 47 Synthesis of Cpd 75

The same procedures as in synthesis example 38 were carried out except for using the compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of the compound Inv3 used in synthesis example 38, to obtain the target compound Cpd 75(5.6g, yield 68%).

HRMS[M]⁺:820.309

[ Synthesis example 48] Synthesis of Cpd 76

The same procedures as in synthesis example 39 were carried out except for using the compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of the compound Inv3 used in synthesis example 39, to obtain the target compound Cpd 76(4.6g, yield 57%).

HRMS[M]⁺:808.309

Synthesis example 49 Synthesis of Cpd 77

The same procedures as in synthesis example 35 were carried out except for using compound Inv6(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 35, to obtain the target compound Cpd 77(4.5g, yield 60%).

HRMS[M]⁺:744.277

Synthesis example 50 Synthesis of Cpd 78

The same procedures as in synthesis example 36 were carried out except for using compound Inv6(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 36 to obtain the target compound Cpd 78(4.5g, yield 58%).

HRMS[M]⁺:784.309

Synthesis example 51 Synthesis of Cpd 80

The same procedures as in synthesis example 37 were carried out except for using compound Inv6(3.1g, 10.0mmol) synthesized in preparation example 3 in place of compound Inv3 used in synthesis example 37, to obtain the target compound Cpd 80(5.2g, yield 63%).

HRMS[M]⁺:820.309

Synthesis example 52 Synthesis of Cpd81

The same procedures as in synthesis example 39 were carried out except for using the compound Inv6(3.1g, 10.0mmol) synthesized in preparation example 3 in place of the compound Inv3 used in synthesis example 39, to obtain the target compound Cpd81 (4.6g, yield 57%).

HRMS[M]⁺:808.309

[ Synthesis example 53] Synthesis of Cpd 20

The same procedures as in synthesis example 31 were carried out except for using the compound Inv7 synthesized in preparation example 4 (3.8g, 10.0mmol) in place of the compound Inv3 used in synthesis example 31 and using N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine (5.4g, 12.0mmol) in place of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine, to obtain the objective compound Cpd 20(4.6g, yield 65%).

HRMS[M]⁺:794.293

Synthesis example 54 Synthesis of Cpd 41

The same procedures as in synthesis example 53 above were carried out except for using the compound Inv8(3.8g, 10.0mmol) synthesized in preparation example 4 in place of the compound Inv7 used in synthesis example 31 to obtain the target compound Cpd 41(4.6g, yield 65%).

HRMS[M]⁺:794.293

[ Synthesis example 55] Synthesis of Cpd 48

<Step 1>2- (dibenzo-p-dioxan) Process for preparing en-2-yl) -4,4,5, 5-tetramethyl-1, 3, 2-dioxaborolan Synthesis of

The compound synthesized in preparation example 2, Inv3(3.1g, 10.0mmol) and iodobenzene (2.5g, 12.0mmol) were dissolved in toluene (100ml), and Pd was added under nitrogen₂(dba)₃(0.9g, 1.0 mmol). Thereafter, after adding NaOtBu (2.9g, 30mmol) thereto, (t-Bu)₃P (1.0ml, 1.0mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

Confirmed by TLCAfter the reaction was completed, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and refining by column chromatography to obtain 2-chloro-5-phenyl-5H-benzo [5, 6]][1,4]IIEno [2,3-b ]]Carbazole (3.3g, yield 83%).

<Step 2>Synthesis of Cpd 48

Mixing the above<Step 1>2-chloro-5-phenyl-5H-benzo [5, 6] obtained in][1,4]IIEno [2,3-b ]]Carbazole (3.3g, 8.5mmol), N- ([1,1' -biphenyl)]-4-yl) -9, 9-dimethyl-9H-fluoren-2-amine (3.7g, 10.2mmol) was dissolved in toluene (85ml), and Pd was charged under nitrogen₂(dba)₃(0.76g, 0.8 mmol). Thereafter, after adding NaOtBu (2.4g, 25mmol) thereto, (t-Bu)₃P (0.8ml, 0.8mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, compound Cpd 48(4.8g, yield 80%) was obtained by column chromatography.

HRMS[M]⁺:708.277

Synthesis example 56 Synthesis of Cpd 56

The same procedures as in synthesis example 55 were carried out except for using compound Inv5(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 55, to obtain the target compound Cpd 56(4.6g, yield 65%).

HRMS[M]⁺:708.277

[ Synthesis example 57] Synthesis of Cpd 72

The same procedures as in synthesis example 55 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 55, to obtain the objective compound Cpd 72(4.3g, yield 61%).

HRMS[M]⁺:708.277

Synthesis example 58 Synthesis of Cpd 79

The same procedures as in synthesis example 55 were carried out except for using compound Inv6(3.1g, 10.0mmol) synthesized in preparation example 3 instead of compound Inv3 used in synthesis example 55, to obtain the target compound Cpd 79(4.2g, yield 60%).

HRMS[M]⁺:708.277

Synthesis example 59 Synthesis of Cpd86

The compound synthesized in preparation example 1, Inv1(2.7g, 10.0mmol), 2-chloro-4, 6-diphenyl-1, 3, 5-triazine (2.67g, 10.0mmol), NaH (0.24g, 10.0mmol) and DMF (50ml) were mixed and stirred at room temperature for 1 hour. After completion of the reaction, water was added to the reaction solution, and the solid product was filtered and purified by column chromatography to obtain compound Cpd86 (4.7g, yield 93%).

HRMS[M]⁺:504.158

Synthesis example 60 Synthesis of Cpd 87

The same procedures as in Synthesis example 59 above were carried out except for using 2-chloro-4, 6-diphenylpyridine (2.6g, 10.0mmol) in place of 2-chloro-4, 6-diphenyl-1, 3, 5-triazine used in Synthesis example 59 to obtain Cpd 87(4.3g, yield 85%).

HRMS[M]⁺:502.168

Synthesis example 61 Synthesis of Cpd 88

The same procedures as in Synthesis example 59 above were carried out except for using 4-bromo-2, 6-diphenylpyrimidine (3.1g, 10.0mmol) instead of 2-chloro-4, 6-diphenyl-1, 3, 5-triazine used in Synthesis example 59, to obtain the objective compound, Cpd 88(4.4g, yield 88%).

HRMS[M]⁺:503.163

Synthesis example 62 Synthesis of Cpd 89

The same procedures as in Synthesis example 59 above were carried out except for using 2-bromo-4, 6-diphenylpyrimidine (3.1g, 10.0mmol) instead of 2-chloro-4, 6-diphenyl-1, 3, 5-triazine used in Synthesis example 59, to obtain Cpd 89(4.5g, yield 88%).

HRMS[M]⁺:503.163

Synthesis example 63 Synthesis of Cpd 128

The same procedures as in synthesis example 59 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 59, to obtain the objective compound Cpd 128(4.5g, yield 88%).

HRMS[M]⁺:504.158

Synthesis example 64 Synthesis of Cpd 129

The same procedures as in synthesis example 60 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 60 to obtain the target compound Cpd 129(4.3g, yield 85%).

HRMS[M]⁺:502.168

[ Synthesis example 65] Synthesis of Cpd 130

The same procedures as in synthesis example 61 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 61 to obtain the target compound Cpd 130(4.4g, yield 88%).

HRMS[M]⁺:503.163

Synthesis example 66 Synthesis of Cpd 131

The same procedures as in synthesis example 62 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 62 to obtain the target compound Cpd 131(4.5g, yield 88%).

HRMS[M]⁺:503.163

[ Synthesis example 67] Synthesis of Cpd 90

The compound synthesized in preparation example 1, Inv1(2.7g, 10.0mmol) and 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine (4.7g, 12.0mmol) were dissolved in toluene (100ml), and Pd was charged under nitrogen₂(dba)₃(0.9g, 1.0 mmol). Thereafter, after adding NaOtBu (2.9g, 30mmol) thereto, (t-Bu)₃P (1.0ml, 1.0mmol) was charged to the above reaction solution, and the mixture was stirred under reflux for 5 hours.

After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, Cpd 90(4.9g, yield 84%) was obtained by column chromatography.

HRMS[M]⁺:580.189

Synthesis example 68 Synthesis of Cpd 91

The same procedures as in synthesis example 67 were carried out except for using 2- (4-bromophenyl) -4, 6-diphenylpyrimidine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 91(5.1g, yield 88%).

HRMS[M]⁺:579.194

Synthesis example 69 Synthesis of Cpd 92

The same procedures as in synthesis example 67 were carried out except for using 2- (4-bromophenyl) -4, 6-diphenylpyridine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 92(5.2g, yield 90%) as a target compound.

HRMS[M]⁺:578.199

[ Synthesis example 70] Synthesis of Cpd 93

The same procedures as in synthesis example 67 were carried out except for using 4- (4-bromophenyl) -2, 6-diphenylpyrimidine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 93(4.9g, yield 85%).

HRMS[M]⁺:579.194

Synthesis example 71 Synthesis of Cpd94

The same procedures as in synthesis example 67 were carried out except for using 2- (3-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain the objective compound Cpd94(5.2g, yield 90%).

HRMS[M]⁺:580.189

[ Synthesis example 72] Synthesis of Cpd 95

The same procedures as in synthesis example 67 were carried out except for using 2- (3-bromophenyl) -4, 6-diphenylpyridine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 95(4.7g, yield 82%) as a target compound.

HRMS[M]⁺:578.199

[ Synthesis example 73] Synthesis of Cpd 96

The same procedures as in synthesis example 67 were carried out except for using 4- (3-bromophenyl) -2, 6-diphenylpyrimidine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 96(5.1g, yield 88%).

HRMS[M]⁺:579.194

Synthesis example 74 Synthesis of Cpd 97

The same procedures as in synthesis example 67 were carried out except for using 2- (3-bromophenyl) -4, 6-diphenylpyrimidine (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 97(5.3g, yield 91%).

HRMS[M]⁺:579.194

Synthesis example 75 Synthesis of Cpd100

The same procedures as in synthesis example 67 were carried out except for using 2, 4-bis ([1,1' -biphenyl ] -4-yl) -6- (4-bromophenyl) -1,3, 5-triazine (6.5g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd100(6.1g, yield 83%) as a target compound.

HRMS[M]⁺:732.252

[ Synthesis example 76] Synthesis of Cpd101

The same procedures as in synthesis example 67 were carried out except for using 2- (5-bromo- [1,1' -biphenyl ] -3-yl) -4, 6-diphenyl-1, 3, 5-triazine (5.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain the objective compound Cpd101(5.2g, yield 80%).

HRMS[M]⁺:656.221

Synthesis example 77 Synthesis of Cpd105

The same procedures as in Synthesis example 67 were carried out except for using 2- (3-bromophenyl) triphenylene (4.6g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in Synthesis example 67 to obtain Cpd105 (4.8g, yield 83%) as a target compound.

HRMS[M]⁺:575.188

[ Synthesis example 78] Synthesis of Cpd106

The same procedures as in synthesis example 67 were carried out except for using 4- (4-bromophenyl) -6-phenylbenzo [ b, d ] thiophene (5.0g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain the objective compound Cpd106(4.9g, yield 81%).

HRMS[M]⁺:607.160

[ Synthesis example 79] Synthesis of Cpd110

The same procedures as in synthesis example 67 were carried out except for using 3-bromo-9-phenyl-9H-carbazole (3.9g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd110(4.8g, yield 93%) as a target compound.

HRMS[M]⁺:514.618

Synthesis example 80 Synthesis of Cpd 111

The same procedures as in synthesis example 67 were carried out except for using 4-bromodibenzo [ b, d ] furan (3.0g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 111(3.6g, yield 82%) as a target compound.

HRMS[M]⁺:439.120

Synthesis example 81 Synthesis of Cpd 112

The same procedures as in synthesis example 67 were carried out except for using 4-bromodibenzo [ b, d ] thiophene (3.2g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain the objective compound Cpd 112(3.6g, yield 80%).

HRMS[M]⁺:455.098

Synthesis example 82 Synthesis of Cpd 113

The same procedures as in synthesis example 67 were carried out except for using 2-bromodibenzo [ b, d ] furan (3.0g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain Cpd 113(3.9g, yield 88%).

HRMS[M]⁺:439.120

Synthesis example 83 Synthesis of Cpd114

The same procedures as in synthesis example 67 were carried out except for using 2-bromodibenzo [ b, d ] thiophene (3.2g, 12.0mmol) instead of 2- (4-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine used in synthesis example 67 to obtain the objective compound Cpd114(4.1g, yield 89%).

HRMS[M]⁺:455.098

Synthesis example 84 Synthesis of Cpd 115

<Step 1>Synthesis of 3-bromo-9-tosyl-9H-carbazole

After acetone (200mL) was added to KOH (2.7g, 48mmol) and dissolved, 3-bromo-9H-carbazole (9.8g, 40mmol) was added. Then, TsCl (8.4g, 44mmol) was added thereto, and the mixture was refluxed for 3 hours, cooled, and then 1L of cold water was added thereto with stirring. After stirring for 30 minutes, the crude product was obtained by filtration. Then, using CH₂Cl₂After EtOH recrystallization, 3-bromo-9-tosyl-9H-carbazole was obtained (9.8g, yield 61%).

<Step 2>5- (9-tosyl-9H-carbazol-3-yl) -5H-benzo [5,6][1,4]II Alkene [2,3- b]Synthesis of carbazole

Mixing the above<Step 1>3-bromo-9-tosyl-9H-carbazole (9.6g, 24mmol) obtained in (1), the compound synthesized in preparation example Inv1(7.9g, 29mmol), CuI (0.4g, 2.0mmol), 1, 2-diaminocyclohexane (0.3g, 2.4mmol), K₃PO_4-H₂O (10.6g, 50mmol) and toluene (150mL) were added to a 500mL round bottom flask. The reaction was heated at reflux and stirred under a nitrogen atmosphere for 24 hours. After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and purifying by column chromatography to obtain 5- (9-tosyl-9H-carbazol-3-yl) -5H-benzo [5, 6%][1,4]IIEno [2,3-b ]]Carbazole (12.4g, yield 87%).

<Step 3>5- (9H-carbazol-3-yl) -5H-benzo [5, 6%][1,4]II Eno [2,3-b ]]Synthesis of carbazole

Mixing the above<Step 2>5- (9-tosyl-9H-carbazol-3-yl) -5H-benzo [5, 6] obtained in (1)][1,4]IIEno [2,3-b ]]Carbazole (12.4g, 21mmol), NaOH (8.0g, 200mmol), THF (80mL), MeOH (40mL), and water (40mL) were added to a 500mL round-bottom flask, and the reaction was heated under reflux for 12 hours. After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄Drying, distilling under reduced pressure, and refining by column chromatography to obtain 5- (9H-carbazol-3-yl) -5H-benzo [5, 6%][1,4]IIEno [2,3-b ]]Carbazole (8.4g, 91% yield).

<Step 4>Synthesis of Cpd 115

Mixing the above<Step 3>5- (9H-carbazol-3-yl) -5H-benzo [5, 6] obtained in (1)][1,4]IIEno [2,3-b ]]Carbazole (3.0g, 7mmol), 2-bromodibenzothiophene (3.0g, 10mmol), Pd₂(dba)₃After addition of (0.5g, 0.5mmol), S-Phos (0.8g, 2.0mmol), NaOtBu (2.9g, 30mmol) and 200mL of xylene to a 500mL round bottom flask, the reaction was heated at reflux and stirred under a nitrogen atmosphere for 12 hours. After confirming the completion of the reaction by TLC, the reaction mixture was cooled to room temperature. After completion of the reaction, distilled water was added, and the organic layer was extracted with ethyl acetate. The organic layer was washed with Na₂SO₄After drying and distillation under reduced pressure, compound Cpd 115(5.2g, yield 84%) was obtained by column chromatography.

HRMS[M]⁺:620.155

[ Synthesis example 85] Synthesis of Cpd 116

The same procedures as in synthesis example 84 were carried out except for using 3-bromo-9-phenyl-9H-carbazole (3.2g, 10mmol) instead of 2-bromodibenzothiophene used in synthesis example 84 to obtain Cpd 116(5.9g, yield 87%) as a target compound.

HRMS[M]⁺:679.226

[ Synthesis example 86] Synthesis of Cpd 117

The same procedures as in Synthesis example 84 were carried out except for using 2-bromodibenzo [ b, d ] furan (2.5g, 10mmol) in place of 2-bromodibenzothiophene used in Synthesis example 84 to obtain Cpd 117(5.4g, yield 90%) as a target compound.

HRMS[M]⁺:604.178

[ Synthesis example 87] Synthesis of Cpd 118

The same procedures as in Synthesis example 84 were repeated except for using 2-chloro-4, 6-diphenyl-1, 3, 5-triazine (2.7g, 10mmol) in place of 2-bromodibenzothiophene used in Synthesis example 84 to obtain Cpd 118(5.6g, yield 83%) as a target compound.

HRMS[M]⁺:669.216

Synthesis example 88 Synthesis of Cpd119

The same procedures as in synthesis example 31 were carried out except for using 2- (3-bromophenyl) -4, 6-diphenyl-1, 3, 5-triazine (4.7g, 12.0mmol) instead of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 to obtain the objective compound Cpd119(4.2g, yield 64%).

HRMS[M]⁺:656.221

[ Synthesis example 89] Synthesis of Cpd 120

The same procedures as in synthesis example 31 were carried out except for using 2- (3-bromophenyl) -4, 6-diphenylpyridine (4.6g, 12.0mmol) instead of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 to obtain Cpd 120(3.9g, yield 60%).

HRMS[M]⁺:654.230

Synthesis example 90 Synthesis of Cpd 121

The same procedures as in synthesis example 31 above were carried out except for using 4- (3-bromophenyl) -2, 6-diphenylpyrimidine (4.7g, 12.0mmol) instead of 4 '-bromo-N, N-diphenyl- [1,1' -biphenyl ] -4-amine used in synthesis example 31 to obtain Cpd 121(4.4g, yield 68%).

HRMS[M]⁺:655.226

Synthesis example 91 Synthesis of Cpd 122

The same procedures as in synthesis example 53 above were carried out except for using 2-chloro-4, 6-diphenyl-1, 3, 5-triazine (3.2g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 53, to obtain Cpd 122(4.0g, yield 60%) as the objective compound.

HRMS[M]⁺:656.221

Synthesis example 92 Synthesis of Cpd 123

The same procedures as in synthesis example 53 above were carried out except for using 4-chloro-2, 6-diphenylpyrimidine (3.2g, 12.0mmol) instead of N- (4 '-bromo- [1,1' -biphenyl ] -4-yl) -N-phenylnaphthalene-2-amine used in synthesis example 53, to obtain Cpd 123(4.0g, yield 62%) as a target compound.

HRMS[M]⁺:655.226

Synthesis example 93 Synthesis of Cpd 132

The same procedures as in synthesis example 67 were carried out except for using compound Inv2 synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 67 to obtain target compound Cpd 132(4.9g, yield 84%).

HRMS[M]⁺:580.189

Synthesis example 94 Synthesis of Cpd 133

The same procedures as in synthesis example 68 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 68, to obtain the objective compound Cpd 133(5.1g, yield 88%).

HRMS[M]⁺:579.194

Synthesis example 95 Synthesis of Cpd 134

The same procedures as in synthesis example 69 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 69 to obtain the target compound Cpd 134(5.2g, yield 90%).

HRMS[M]⁺:578.199

[ Synthesis example 96] Synthesis of Cpd 135

The same procedures as in synthesis example 70 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 70, to obtain the target compound Cpd 135(4.9g, yield 85%).

HRMS[M]⁺:579.194

Synthesis example 97 Synthesis of Cpd 136

The same procedures as in synthesis example 71 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 71 to obtain the target compound Cpd 136(5.2g, yield 90%).

HRMS[M]⁺:580.189

Synthesis example 98 Synthesis of Cpd 137

The same procedures as in synthesis example 72 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 72 to obtain the target compound Cpd 137(4.7g, yield 82%).

HRMS[M]⁺:578.199

Synthesis example 99 Synthesis of Cpd 138

The same procedures as in synthesis example 73 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 73, to obtain the target compound Cpd 138(5.1g, yield 88%).

HRMS[M]⁺:579.194

[ Synthesis example 100] Synthesis of Cpd 139

The same procedures as in synthesis example 74 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 74 to obtain the objective compound Cpd 139(5.3g, yield 91%).

HRMS[M]⁺:579.194

Synthesis example 101 Synthesis of Cpd 142

The same procedures as in synthesis example 75 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 75 to obtain the objective compound Cpd 142(6.1g, yield 83%).

HRMS[M]⁺:732.252

Synthesis example 102 Synthesis of Cpd 143

The same procedures as in synthesis example 76 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 76 to obtain the target compound Cpd 143(5.2g, yield 80%).

HRMS[M]⁺:656.221

Synthesis example 103 Synthesis of Cpd 147

The same procedures as in synthesis example 77 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 77 to obtain the target compound Cpd 147(4.8g, yield 83%).

HRMS[M]⁺:575.188

Synthesis example 104 Synthesis of Cpd 148

The same procedures as in synthesis example 78 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 78 to obtain the objective compound Cpd 148(4.9g, yield 81%).

HRMS[M]⁺:607.160

Synthesis example 105 Synthesis of Cpd 152

The same procedures as in synthesis example 79 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 79 to obtain the target compound Cpd 152(4.8g, yield 93%).

HRMS[M]⁺:514.618

Synthesis example 106 Synthesis of Cpd 153

The same procedures as in synthesis example 80 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 80 to obtain the objective compound Cpd 153(3.6g, yield 82%).

HRMS[M]⁺:439.120

Synthesis example 107 Synthesis of Cpd 154

The same procedures as in synthesis example 81 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 81 to obtain the objective compound Cpd 154(3.6g, yield 80%).

HRMS[M]⁺:455.098

Synthesis example 108 Synthesis of Cpd 155

The same procedures as in synthesis example 82 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 82 to obtain the objective compound Cpd 155(3.9g, yield 88%).

HRMS[M]⁺:439.120

Synthesis example 109 Synthesis of Cpd 156

The same procedures as in synthesis example 83 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 83 to obtain the objective compound Cpd 156(4.1g, yield 89%).

HRMS[M]⁺:455.098

[ Synthesis example 110] Synthesis of Cpd 157

The same procedures as in synthesis example 84 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 84, to obtain the target compound Cpd 157(5.2g, yield 84%).

HRMS[M]⁺:620.155

Synthesis example 111 Synthesis of Cpd 158

The same procedures as in synthesis example 85 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 85 to obtain target compound Cpd 158(5.9g, yield 87%).

HRMS[M]⁺:679.226

Synthesis example 112 Synthesis of Cpd 159

The same procedures as in synthesis example 86 were carried out except for using the compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of the compound Inv1 used in synthesis example 86, to obtain the target compound Cpd 159(5.4g, yield 90%).

HRMS[M]⁺:604.178

[ Synthesis example 113] Synthesis of Cpd 160

The same procedures as in synthesis example 87 were carried out except for using compound Inv2(2.7g, 10.0mmol) synthesized in preparation example 1 in place of compound Inv1 used in synthesis example 87, to obtain the target compound Cpd 160(5.6g, yield 83%).

HRMS[M]⁺:669.216

Synthesis example 114 Synthesis of Cpd 161

The same procedures as in synthesis example 88 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 in place of compound Inv3 used in synthesis example 88, to obtain the target compound Cpd 161(4.2g, yield 64%).

HRMS[M]⁺:656.221

[ Synthesis example 115] Synthesis of Cpd 162

The same procedures as in synthesis example 89 above were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of compound Inv3 used in synthesis example 89, to obtain the objective compound Cpd 162(3.9g, yield 60%).

HRMS[M]⁺:654.230

Synthesis example 116 Synthesis of Cpd 163

The same procedures as in synthesis example 90 were carried out except for using compound Inv4(3.1g, 10.0mmol) synthesized in preparation example 2 instead of compound Inv3 used in synthesis example 90, to obtain the target compound Cpd 163(4.4g, yield 68%).

HRMS[M]⁺:655.226

Synthesis example 117 Synthesis of Cpd 164

The same procedures as in synthesis example 91 were carried out except for using the compound Inv8(3.1g, 10.0mmol) synthesized in preparation example 4 in place of the compound Inv7 used in synthesis example 91, to obtain the target compound Cpd 164(4.0g, yield 60%).

HRMS[M]⁺:656.221

Synthesis example 118 Synthesis of Cpd 165

The same procedures as in synthesis example 92 were carried out except for using compound Inv8(3.1g, 10.0mmol) synthesized in preparation example 4 instead of compound Inv7 used in synthesis example 92, to obtain the objective compound Cpd 165(4.0g, yield 62%).

HRMS[M]⁺:655.226

EXAMPLE 1 production of Green organic electroluminescent element

The compound cpd1 synthesized in synthesis example 1 was purified by high-purity sublimation according to a generally known method, and then a green organic electroluminescent element was produced as follows.

Will be provided withA glass substrate coated with ITO (indium tin oxide) in a thin film thickness was ultrasonically washed with distilled water. After the completion of the distilled water washing, the substrate was ultrasonically washed with a solvent such as isopropyl alcohol, acetone, or methanol, dried, transferred to an ultraviolet ozone (uvozon) washer (Power sonic 405, HWASHIN TECH), cleaned with UV for 5 minutes, and transferred to a vacuum evaporator.

On the ITO transparent electrode prepared as described above, m-MTDATA (60nm)/TCTA (80 nm)/the compound cpd1(40nm)/CBP + 10% Ir (ppy) were laminated in this order₃₍300nm)/BCP(10nm)/Alq₃₍30nm)/LiF (1nm)/Al (200nm), and a green organic electroluminescent element was produced.

Wherein the m-MTDATA, TCTA, Ir (ppy)₃The structures of CBP and BCP are as follows.

[ examples 2 to 58] production of Green organic electroluminescent element

Green organic electroluminescent elements were produced in the same manner as in example 1, except that the compounds described in table 1 below were used instead of the compound cpd1 used in example 1.

Comparative example 1 production of Green organic electroluminescent element

A green organic electroluminescent element was produced in the same manner as in example 1, except that the compound cpd1 used in example 1 was not used.

[ evaluation example 1]

For the green organic electroluminescent elements produced in examples 1 to 58 and comparative example 1, respectively, a current density of 10mA/cm was measured²Driving voltage of time, electricityThe flow efficiency and the luminescence peak are shown in table 1 below.

[ Table 1]

As shown in table 1 above, it is understood that the green organic electroluminescent elements of examples 1 to 58 using the compound represented by chemical formula 1 of the present invention (Cpd 1 to Cpd81) as a material for a light-emitting auxiliary layer have a slightly lower driving voltage than the green organic electroluminescent element of comparative example 1 using CBP only as a material for a light-emitting layer without a light-emitting auxiliary layer, and have a more excellent current efficiency than the green organic electroluminescent element of comparative example 1.

EXAMPLE 59 production of Red organic electroluminescent element

The compound cpd1 synthesized in synthesis example 1 was purified by high-purity sublimation according to a generally known method, and then a red organic electroluminescent element was produced as follows.

First, will be provided withA glass substrate coated with ITO (indium tin oxide) in a thin film thickness was ultrasonically washed with distilled water. After the completion of the distilled water washing, the substrate was ultrasonically washed with a solvent such as isopropyl alcohol, acetone, or methanol, dried, transferred to an ultraviolet OZONE (UV OZONE) washer (Power sonic 405, HWASHIN TECH), cleaned with UV for 5 minutes, and transferred to a vacuum evaporator.

On the ITO transparent electrode prepared as described above, m-MTDATA (60nm)/TCTA (80 nm)/the compound cpd1(40nm)/CBP + 10% (piq) were laminated in this order₂Ir(acac)(300nm)/BCP(10nm)/Alq₃(30nm)/LiF (1nm)/Al (200nm), and a red organic electroluminescent element was produced.

Wherein the structures of m-MTDATA, TCTA, CBP and BCP used were the same as those described in example 1, (pi)q)₂Ir (acac) is shown below.

Example 60 to 116 production of Red organic electroluminescent element

Red organic electroluminescent elements were produced in the same manner as in example 59, except that the compounds shown in table 2 below were used instead of cpd1, which was the compound used in example 59.

Comparative example 2 production of Red organic electroluminescent element

A red organic electroluminescent element was produced in the same manner as in example 59, except that cpd1, the compound used in example 59, was not used.

[ evaluation example 2]

For each of the red organic electroluminescent elements prepared in examples 59 to 116 and comparative example 2, the current density was measured at 10mA/cm²The results of the driving voltage and the current efficiency are shown in table 2 below.

[ Table 2]

As shown in table 2 above, it is understood that the red organic electroluminescent elements of examples 59 to 116 using the compound represented by chemical formula 1 of the present invention (compounds Cpd1 to Cpd81) as a material for a light-emitting auxiliary layer have a slightly lower driving voltage and more excellent current efficiency than the red organic electroluminescent element of comparative example 2 using only CBP as a material for a light-emitting layer without a light-emitting auxiliary layer.

EXAMPLE 117 production of blue organic electroluminescent element

The compound cpd1 synthesized in synthesis example 1 was purified by high-purity sublimation according to a generally known method, and then a blue organic electroluminescent element was produced as follows.

On the ITO transparent electrode prepared as described above, DS-205 (Fangshan) (80nm)/NPB (15 nm)/Compound Cpd 1(15nm)/ADN + 5% DS-405 (Fangshan) (300nm)/BCP (10nm)/Alq were laminated in this order₃(30nm)/LiF (1nm)/Al (200nm), a blue organic electroluminescent element was produced.

The BCP used was the same as described in example 1, AND the structures of NPB AND are as follows.

EXAMPLES 118 to 174 production of blue organic electroluminescent element

Blue organic electroluminescent elements were produced in the same manner as in example 117, except that the compounds shown in table 3 below were used instead of cpd1, which was the compound used in example 117.

Comparative example 3 production of blue organic electroluminescent element

A blue organic electroluminescent element was produced in the same manner as in example 117, except that cpd1, the compound used in example 117, was not used.

[ evaluation example 3]

For each of the blue organic electroluminescent elements prepared in examples 117 to 174 and comparative example 3, the current density was measured at 10mA/cm²The results of the driving voltage and the current efficiency are shown in table 3 below.

[ Table 3]

As shown in table 3 above, it is understood that the blue organic electroluminescent elements of examples 117 to 174 using the compound represented by chemical formula 1 of the present invention (compounds Cpd1 to Cpd81) as the material of the light-emitting auxiliary layer have a similar driving voltage but a superior current efficiency as compared with the blue organic electroluminescent element of comparative example 3 using AND as the material of the light-emitting layer without the light-emitting auxiliary layer.

EXAMPLE 175 production of Green organic electroluminescent element

The compound Cpd86 synthesized in synthesis example 59 was purified by high-purity sublimation according to a generally known method, and then a green organic electroluminescent element was produced by the following procedure.

On the ITO transparent electrode prepared as described above, m-MTDATA (60nm)/TCTA (80 nm)/Compound Cpd86+ 10% Ir (ppy) was laminated in this order₃(300nm)/BCP(10nm)/Alq₃(30nm)/LiF (1nm)/Al (200nm), and a green organic electroluminescent element was produced.

Example 176 to 234 production of Green organic electroluminescent element

A green organic electroluminescent device was produced in the same manner as in example 175, except that each of the compounds described in table 4 below was used instead of cpd86, which was the compound used in example 217.

Comparative example 4 production of Green organic electroluminescent element

A green organic electroluminescent element was produced by the same procedure as in example 175, except that CBP was used instead of the compound Cdp86 used as a light-emitting host substance in forming the light-emitting layer in example 175.

[ evaluation example 4]

For each of the green organic electroluminescent elements prepared in examples 175 to 234 and comparative example 4, the current density was measured at 10mA/cm²The results of the driving voltage, the current efficiency and the emission peak are shown in table 4 below.

[ Table 4]

As shown in table 4 above, it is understood that the green organic electroluminescent elements of examples 175 to 234 using the compounds Cpd86 to Cpd 165 synthesized in synthesis examples 59 to 118 as light emitting layer materials exhibit more excellent performance in terms of current efficiency and driving voltage than the green organic electroluminescent element of comparative example 4 using CBP in the related art.

EXAMPLE 235 production of blue organic electroluminescent element

The compound Cpd105 synthesized in synthesis example 77 was purified by high-purity sublimation according to a generally known method, and then a blue organic electroluminescent element was produced by the following procedure.

First, will be provided withA glass substrate coated with ITO (indium tin oxide) in a thin film thickness was ultrasonically washed with distilled water. After the completion of the washing with distilled water, the resultant is ultrasonically washed with a solvent such as isopropyl alcohol, acetone or methanol, dried and transferred toAfter cleaning the substrate with UV using a Power sonic 405, HWASHIN TECH, an ultraviolet OZONE (UV OZONE) cleaner was used to clean the substrate for 5 minutes, and the substrate was transferred to a vacuum evaporator.

On the ITO transparent electrode prepared as described above, CuPc (10nm)/TPAC (30 nm)/Cpd 105+ 7% Flrpic (30nm)/Alq were laminated in this order₃(30nm)/LiF (0.2nm)/Al (150nm), a blue organic electroluminescent element was produced.

The structures of CuPc, TPAC, and flipic used are shown below.

EXAMPLES 236 to 257 fabrication of blue organic electroluminescent element

Blue organic electroluminescent elements were produced in the same manner as in example 235, except that the compounds shown in table 5 below were used instead of the compound Cpd105 used in example 235.

Comparative example 5 production of blue organic electroluminescent element

A blue organic electroluminescent element was produced by the same procedure as in example 235 above, except that CBP was used instead of the compound Cdp105 used as the light-emitting host substance in forming the light-emitting layer in example 235.

[ evaluation example 5]

For each of the blue organic electroluminescent elements prepared in examples 235 to 257 and comparative example 5, the current density was measured at 10mA/cm²The results of the driving voltage, the current efficiency and the emission peak are shown in table 5 below.

[ Table 5]

	Luminescent layer material	Drive voltage (V)	Luminous peak (nm)	Current efficiency (cd/A)
					Example 235	Cpd 105	7.30	474	6.34
Example 236	Cpd 106	7.24	475	6.55
					Example 237	Cpd 110	7.24	475	6.55
Example 238	Cpd 111	7.15	471	6.94
					Example 239	Cpd 112	7.23	472	6.25
Example 240	Cpd 113	7.12	472	5.85
					Example 241	Cpd 114	7.00	472	6.34
Example 242	Cpd 115	7.29	473	6.90
					Example 243	Cpd 116	7.30	474	6.34
Example 244	Cpd 117	7.24	475	6.55
					Example 245	Cpd 147	7.15	471	6.94
Example 246	Cpd 148	7.23	472	6.25
					Example 247	Cpd 152	7.30	474	6.34
Example 248	Cpd 153	7.24	475	6.55
					Example 249	Cpd 154	7.15	471	6.94
Example 250	Cpd 155	7.23	472	6.25
					Example 251	Cpd 156	7.12	472	5.85
Example 252	Cpd 157	7.00	472	6.34
					Example 253	Cpd 158	7.29	473	6.90
Example 254	Cpd 159	7.30	474	6.34
					Example 255	Cpd 168	7.24	475	6.55
Example 256	Cpd 171	7.24	475	6.55
					Example 257	Cpd 174	7.15	471	6.94
Comparative example 5	CBP	7.80	474	5.80

As shown in Table 5, it is understood that the blue organic electroluminescent elements of examples 235 to 257 using the compounds of the present invention (compounds Cpd105 to Cpd 174) as the material of the light-emitting layer exhibited more excellent performance in terms of current efficiency and driving voltage than the blue organic electroluminescent element of comparative example 5 using CBP in the past.

EXAMPLE 258 fabrication of Green organic electroluminescent element

On the ITO transparent electrode prepared as described above, m-MTDATA (60 nm)/compound Cpd1(80nm)/DS-H522+ 5% DS-501(300nm)/BCP (10nm)/Alq3(30nm)/LiF (1nm)/Al (200nm) was laminated in this order as a hole transport layer material to produce a green organic electroluminescent element.

[ examples 259 to 315] production of Green organic electroluminescent element

A green organic electroluminescent device was produced in the same manner as in example 258 except that compounds shown in table 6 below were used instead of compound Cpd1 used in example 258.

Comparative example 6 production of Green organic electroluminescent element

A green organic electroluminescent element was produced in the same manner as in example 258 except that NPB was used as a substance for a hole-transporting layer instead of compound Cpd1 used in forming a hole-transporting layer in example 258.

[ evaluation example 6]

For the green organic electroluminescent elements manufactured in examples 258 to 315 and comparative example 6, the current density was measured at 10mA/cm²The results of the driving voltage and the current efficiency are shown in table 6 below.

[ Table 6]

As shown in table 6 above, it is understood that the green organic electroluminescent elements of examples 258 to 315 using the compound represented by chemical formula 1 (Cpd 1 to Cpd81) of the present invention as a hole transport layer exhibited superior performance in terms of current efficiency and driving voltage, as compared to the green organic electroluminescent element of comparative example 6 using NPB in the related art.

EXAMPLE 316 production of blue organic electroluminescent element

The compound Cpd86 synthesized in synthesis example 59 was purified by high-purity sublimation according to a commonly known method, and then a blue organic electroluminescent element was produced as follows.

On the ITO transparent electrode prepared as described above, DS-205(80nm)/NPB (15nm)/AND + 5% DS-405(30 nm)/compound Cpd86 (5nm)/Alq₃(25nm)/LiF (1nm)/Al (200nm), blue was producedA color organic electroluminescent element.

[ examples 317 to 355] production of blue organic electroluminescent element

A blue organic electroluminescent element was produced in the same manner as in example 316, except that each compound shown in table 7 was used instead of the compound Cpd86 used as the electron-transport auxiliary layer substance in example 316.

Comparative example 7 production of blue organic electroluminescent element

Without using the compound Cpd86 used as electron-transporting auxiliary layer substance in example 316, for Alq as electron-transporting layer substance₃A blue organic electroluminescent element was produced in the same manner as in example 316, except that 30nm vapor deposition was used instead of 25 nm.

Comparative example 8 production of blue organic electroluminescent element

A blue organic electroluminescent element was produced in the same manner as in example 316, except that BCP was used instead of the compound Cpd86 used as the electron-transport assisting layer substance in example 316.

At this time, the results of the BCP used are as follows.

[ evaluation example 7]

The blue organic electroluminescent elements produced in examples 316 to 355 and comparative examples 7 and 8 were measured for a current density of 10mA/cm²Driving voltage, current efficiency, light emission peak and lifetime (T) of time₉₇) The results are shown in table 7 below.

[ Table 7]

As is clear from table 7, in the case of the blue organic electroluminescent elements of examples 316 to 355 in which the compounds Cpd86 to Cpd 165 synthesized in synthesis examples 59 to 118 were used as electron transport assisting layer substances, the current efficiency and the lifetime were significantly improved, although the driving voltage was similar to or slightly superior to that of the blue organic electroluminescent element of comparative example 7 in which no electron transport assisting layer was used.

In addition, the blue organic electroluminescent devices of examples 316 to 355 were superior in driving voltage and current efficiency and significantly improved in lifetime, as compared with the blue organic electroluminescent device of comparative example 8 in which BCP was conventionally used as an electron transport assisting layer substance.

While the preferred embodiments of the present invention have been described above, it is apparent that the present invention is not limited thereto, and various modifications can be made within the scope of the claims and the detailed description of the invention, and the scope of the present invention also falls within the scope of the present invention.

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