Process producing n-(1-alkoxyethyl)carboxylic amides
申请人:SHOWA DENKO KABUSHIKI KAISHA
公开号:EP0799820A1
公开(公告)日:1997-10-08
A process for producing N-(1-alkoxyethyl)carboxylic amides by reacting alcohols of 1-5 carbon atoms with N-vinylcarboxylic amides in the presence of an acidic catalyst, or by utilizing unreacted starting material, unreacted intermediate or unrecovered product for synthesis of N-(1-alkoxyethyl)carboxylic amides. A process for producing N-(1-alkoxyethyl)carboxylic amides by adding a water-soluble strong acid during reaction between a carboxylic amide and a starting material containing acetaldehyde and alcohol and/or a starting material containing an acetal, in an amount of 2 x 10-3 to 3 x 10-1 equivalents to 1 mole of the carboxylic amide in the starting material, and using a strongly acidic ion-exchange resin as the catalyst.
一种在酸性催化剂存在下通过 1-5 个碳原子的醇与 N-乙烯基羧酸酰胺反应生产 N-(1-烷氧基乙基)羧酸酰胺的工艺,或利用未反应的起始原料、未反应的中间产物或未还原产物合成 N-(1-烷氧基乙基)羧酸酰胺的工艺。一种生产 N-(1-烷氧基乙基)羧酸酰胺的工艺,在羧酸酰胺与含有乙醛和醇的起始原料和/或含有缩醛的起始原料反应过程中加入水溶性强酸,加入量为起始原料中 1 摩尔羧酸酰胺的 2 x 10-3 至 3 x 10-1 等量,并使用强酸性离子交换树脂作为催化剂。
N-Vinylformamide — Syntheses and Chemistry of a Multifunctional Monomer