The present invention provides an industrial production method with a short process having a high yield of an aliphatic cyclic carboxamide having carboxyl group, which comprises reacting functional group-selectively using an inexpensive condensing agent without protecting the carboxyl group by esterification, that is, reacting carboxylic acid anhydride obtained by reacting carboxylic acid and tertiary carboxylic acid halide with aliphatic cyclic secondary amine having carboxyl group.
本发明提供了一种工业生产方法,该方法具有短工艺流程,高产率,用廉价的
缩合剂进行功能基选择性反应,不需要通过酯化来保护羧基,即将
羧酸和三级
羧酸卤化物反应得到
羧酸酐,然后与具有羧基的脂环状二级胺反应。