申请人:TOKUYAMA SODA KABUSHIKI KAISHA
公开号:EP0189774A1
公开(公告)日:1986-08-06
A novel process for producing N,N-disubstituted carboxylic acid amides represented by the following formula
wherein
R, R1, R2 and R3 are as defined in claim 1, which comprises contacting a Schiff base represented by the following formula (III)
wherein
R, R1 and R2 are as defined above, with a carboxylic acid derivative represented by the following formula (III)
wherein
R3 is as defined above, and M represents a halogen atom or the moiety
in the presence of a silane compound represented by the following formula (IV)
wherein
X, Y and Z, independently from each other, represent a hydrogen atom or a halogen atom,
in the presence or absence of an inert organic solvent.
1.一种生产下式所代表的N,N-二取代羧酸酰胺的新工艺,其中R、R1、R2和R3如权利要求1所定义,该工艺包括在有或无惰性有机溶剂存在的情况下,将下式(III)所代表的希夫碱(其中R、R1和R2如上所定义)与下式(III)所代表的羧酸衍生物(其中R3如上所定义)和M代表卤素原子或分子在下式(IV)所代表的硅烷化合物(其中X、Y和Z各自代表氢原子或卤素原子)存在的情况下接触。