申请人:STAUFFER CHEMICAL COMPANY
公开号:EP0039166A1
公开(公告)日:1981-11-04
Dichloroacetylamides selected from:
a) N,N-diallyldichloroacetamide, and
b) N-dichloroacetyl oxazolidines having the formula
in which R is hydrogen or C1-C3 alkyl are produced, in a continuous circulating process, by reaction of dichloroacetyl chloride with N,N-diallylamine or an oxazolidine having the formula
in the presence of an aqueous solution of sodium hydroxide. This process produces the desired amide in greater yield than by the previously practiced batch processes.
二氯乙酰酰胺选自:
a) N,N-二烯丙基二氯乙酰胺,以及
b) N-二氯乙酰基噁唑烷,其式如下
其中 R 为氢或 C1-C3 烷基,通过二氯乙酰氯与 N,N-二烯丙基胺或具有以下式子的恶唑烷反应,以连续循环工艺制得
在氢氧化钠水溶液存在下进行反应。与以前采用的间歇式工艺相比,这种工艺能以更高的产率生产出所需的酰胺。