申请人:UBE INDUSTRIES LIMITED
公开号:EP0902014A1
公开(公告)日:1999-03-17
A process for producing an aryl carbamate of a high purity at a high yield by reacting a diaryl carbonate with an amine compound having one or more hydrogen atoms bonded to the N position in the presence of carboxylic acid(s) of the following general formulae (I): R1-COOH and/or (II): R2-COOH (wherein R1 represents an alkyl or cycloalkyl group having a carbon atom at the α-position, which is bonded to only one hydrogen atom, and R2 represents an alkyl group having a carbon atom at the α-position, which is not bonded to a hydrogen atom).
一种高纯度、高收率的氨基甲酸芳基酯的生产工艺,该工艺是在下列通式(I)的羧酸存在下,使碳酸二芳基酯与一个或多个氢原子键合在 N 位上的胺化合物反应:R1-COOH 和/或 (II):R2-COOH(其中 R1 代表烷基或环烷基,在 α 位有一个碳原子,只与一个氢原子键合;R2 代表烷基,在 α 位有一个碳原子,不与氢原子键合)。