制备单乙烯基醚的方法

文档序号:834889 发布日期:2021-03-30 浏览:25次 >En<

阅读说明:本技术 制备单乙烯基醚的方法 (Process for preparing monovinyl ethers ) 是由 F·比内沃尔德 M·弗尔克特 R·平科斯 于 2019-08-19 设计创作,主要内容包括:本发明涉及一种制备其中R表示具有至少3个碳原子的有机基团的式(I)R-O-CH=CH-2的单乙烯基醚的方法,所述方法包括:a)使其中R具有上述含义的式(II)R-OH的单羟基化合物在催化剂存在下与乙炔反应以得到包含单乙烯基醚、未转化的单羟基化合物和催化剂的产物混合物,b)向方法步骤a)中获得的产物混合物中加入包含至少一种其中X为包含比R少的碳原子数的烃基的式(III)X-O-2C-的酯基的酯,并使残余单羟基化合物R-OH与酯在催化剂的存在下反应以获得包含至少一种式(IV)R-O-2C-的酯基的酯交换产物和式(V)X-OH的醇,其中R和X具有上述含义,和c)由方法步骤b)之后获得的产物混合物分离单乙烯基醚,任选地随后通过蒸馏纯化单乙烯基醚。(The invention relates to a method for producing an organic radical of formula (I) R-O-CH (CH) wherein R represents an organic radical having at least 3 carbon atoms 2 The method of monovinyl ether of (a), the method comprising: a) reacting a monohydroxy compound of the formula (II) R-OH in which R has the abovementioned meaning with acetylene in the presence of a catalyst to give a product mixture comprising monovinylether, unconverted monohydroxy compound and catalyst, b) adding to the product mixture obtained in process step a) at least one compound selected from the group consisting ofX is a hydrocarbon group having a carbon number smaller than R and is represented by the formula (III) X-O 2 C-, and reacting the residual monohydroxy compound R-OH with the ester in the presence of a catalyst to obtain a catalyst comprising at least one R-O of the formula (IV) 2 C-and an alcohol of the formula (V) X-OH, where R and X have the abovementioned meanings, and C) separating the monovinyl ether from the product mixture obtained after process step b), optionally followed by purification of the monovinyl ether by distillation.)

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