申请人:HOECHST CELANESE CORPORATION
公开号:EP0356070A1
公开(公告)日:1990-02-28
A method is provided of producing 4-acetoxystyrene oxide and substituted 4-acetoxystyrene oxides wherein at least one of the ring hydrogen atoms is substituted with a C₁ to C₁₀ alkyl or alkoxy, amino, halogen or nitro, wherein 4-acetoxystyrene or the corresponding substituted 4-acetoxystyrene is epoxided with peracetic acid containing no more than a trace of a mineral acid or water. The invention also includes, as new compositions of matter, 3,5-dimethyl-4-acetoxystyrene oxide and 3,5-dibromo-4-acetoxystyrene oxide.
本发明提供了制备4-乙酰氧基苯乙烯环氧化物和取代的4-乙酰氧基苯乙烯环氧化物的方法,其中环上至少一个氢原子被C₁到C₁₀烷基或烷氧基、氨基、卤素或硝基所取代,其中4-乙酰氧基苯乙烯或相应的取代的4-乙酰氧基苯乙烯使用含有微量无机酸或水的过醋酸进行环氧化。本发明还包括新的物质组成,即3,5-二甲基-4-乙酰氧基苯乙烯环氧化物和3,5-二溴-4-乙酰氧基苯乙烯环氧化物。