申请人:Tomokawa Junichi
公开号:US20130123505A1
公开(公告)日:2013-05-16
A carboxamide can be produced in a high yield by a method for producing a carboxamide, for example, represented by formula (4):
(wherein R
1
and R
3
are as defined below), the method comprising a step of allowing a carboxylic acid ester represented by formula (1):
(wherein R
1
represents an optionally substituented C
1
-C
20
hydrocarbon group or an optionally substituented C
3
-C
20
heterocyclic group, and R
2
represents an optionally substituented C
1
-C
20
hydrocarbon group), an amine represented by formula (2):
R
3
—NH
2
(2)
(wherein R
3
represents a hydrogen atom or an optionally substituented C
1
-C
20
hydrocarbon group), and a formamide compound represented by formula (3):
(wherein R
3
is as defined above) to react in the presence of a metal alkoxide.
通过一种生产羧酰胺的方法可以高产率生产羧酰胺,例如,如公式(4)所示的方法:(其中R1和R3如下定义),该方法包括允许由公式(1)表示的羧酸酯(其中R1表示可选取代的C1-C20烃基或可选取代的C3-C20杂环基,R2表示可选取代的C1-C20烃基),由公式(2)表示的胺:R3—NH2(2)(其中R3表示氢原子或可选取代的C1-C20烃基),以及由公式(3)表示的甲酰胺化合物(其中R3如上所定义)在金属烷氧化物存在下反应的步骤。