公开(公告)号：US5756807A

公开(公告)日：1998-05-26

申请号：US734271

申请日：1996-10-21

申请人： Clemens Grund ,  Martin Holderbaum ,  Helmut Reichelt ,  Stefan Beckmann

发明人： Clemens Grund ,  Martin Holderbaum ,  Helmut Reichelt ,  Stefan Beckmann

IPC分类号： C07C253/30 ,  C07C255/19 ,  C07C255/27

CPC分类号： C07C253/30

摘要： A process for preparing alkyl cyanoacetates of the general formula I ##STR1## where R is an n-valent aliphatic radical which has 6 to 20 carbon atoms and whose carbon framework can be interrupted by one to three oxygen atoms in ether functionality, and n is a number from 1 to 6, by reacting cyanoacetic acid in aqueous medium with an alcohol R(OH).sub.n, where the esterification is carried out in the presence of an inert entrainer and, during the reaction, water and entrainer are distilled out.

摘要翻译： 制备通式I的烷基氰基乙酸盐的方法，其中R是具有6至20个碳原子并且其碳骨架可被一个至三个在醚官能团中的氧原子间隔的n价脂族基团，n 是氰基乙酸在水性介质中与醇R（OH）n反应的数字，其中在惰性夹带剂存在下进行酯化反应，并且在反应过程中蒸出水和夹带剂。