申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0040896A2
公开(公告)日:1981-12-02
A process for the preparation of an amide of the formula (I)
wherein R is an optionally substituted alkyl, alkenyl, aralkyl or phenyl group, by hydrolysis of a nitrile of the formula (II)
wherein R is as defined above, in the presence of a base and hydrogen peroxide using an organic quaternary ammonium salt and/or a tertiary amine as a catalyst.
This process is useful for the preparation of amides of formula (III) wherein
n is 1, 2 or 3,
Ar and Ar' are optionally substituted phenyl groups, R3 is hydrogen or a substituent.
These amides can be decomposed in amines by a halogen or a hypohalite in the presence of a base.
一种制备式 (I) 酰胺的工艺
其中 R 为任选取代的烷基、烯基、芳基或苯基,通过水解式(II)的腈
其中 R 如上定义,在碱和过氧化氢存在下,使用有机季铵盐和/或叔胺作为催化剂。
该工艺可用于制备式 (III) 的酰胺,其中
n 为 1、2 或 3、
Ar 和 Ar'是任选取代的苯基,R3 是氢或取代基。
这些酰胺可以在碱存在下通过卤素或次卤素分解成胺。