A carboxamide can be produced in a high yield by a method for producing a carboxamide, for example, represented by formula (4) :
(wherein R1 and R3 are as defined below), the method comprising a step of allowing a carboxylic acid ester represented by formula (1):
(wherein R1 represents an optionally substituented C1-C20 hydrocarbon group or an optionally substituented C3-C20 heterocyclic group, and R2 represents an optionally substituented C1-C20 hydrocarbon group), an amine represented by formula (2):
R3-NH2 (2)
(wherein R3 represents a hydrogen atom or an optionally substituented C1-C20 hydrocarbon group),
and a formamide compound represented by formula (3):
(wherein R3 is as defined above)
to react in the presence of a metal alkoxide.
羧酰胺可通过例如由式(4)表示的羧酰胺生产方法以高产率生产:
(其中 R1 和 R3 如下文所定义),该方法包括允许使用式(1)代表的
羧酸酯的步骤:
(其中 R1 代表任选取代的 C1-C20 烃基或任选取代的 C3-C20 杂环基,R2 代表任选取代的 C1-C20 烃基)、式(2)代表的胺:
R3-NH2 (2)
(其中 R3 代表氢原子或任选取代的 C1-C20 烃基)、
以及由式(3)表示的甲酰胺化合物:
(其中 R3 如上定义)
在
金属烷氧基化合物存在下进行反应。