申请人:The British Petroleum Company p.l.c.
公开号:EP0207701A2
公开(公告)日:1987-01-07
A process for preparing alpha substituted epoxides is provided. The process comprises contacting alcohols of formula (R2)(R1)(HO)C-CG(R3)X with a dihydrocarbyl peroxide, a copper compound and a Lewis base to yield compounds of formula
R1, R2, Rand R4 can be hydrogen, alkyl, cycloalkyl or aromatic radicals whilst X is selected from COR4, CN COOR4 or CONR42 groups. The process can be used for converting diacetone alcohol to its corresponding alpha substituted epoxide.
本发明提供了一种制备α-取代环氧化物的工艺。该工艺包括将式(R2)(R1)(HO)C-CG(R3)X 的醇与二氢羰基过氧化物、铜化合物和路易斯碱接触,生成式的化合物。
R1、R2 和 Rand R4 可以是氢、烷基、环烷基或芳香基,而 X 选自 COR4、CN COOR4 或 CONR42 基团。该工艺可用于将二丙酮醇转化为相应的α-取代环氧化物。