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通过二茂铁甲醛与丙二胺反应得到双二茂铁基醛亚胺配体N1,N3-双二茂铁亚甲基丙烷-1,3-二胺(Fc-MP),FcMP与MoO2Cl2(THF)2的四氢呋喃溶液作用,合成了双二茂铁基醛亚胺钼(VI)配合物.以配合物为催化剂,叔丁基过氧化氢为氧化剂,分别以苯乙烯和环己烯为底物,考察了温度、时间、催化剂量及溶剂对于烯烃均相环氧化反应的催化性能的影响.结果表明,在最优实验条件下,反应12h,环己烯的转化率为88%,环氧环己烷的选择性为98%;苯乙烯的转化率为84%,氧化苯乙烯的选择性为76%.催化剂经简单分离可回收使用,且催化活性基本保持不变.同时对环氧化反应的机理进行了初步探讨.
The ferrocene aldimine ligand N1, N3-bisferrocenemethylenepropane-1,3-diamine (Fc-MP), FcMP and MoO2Cl2 THF) 2 was synthesized, and the bis (ferrocenyl) aldimine molybdenum (VI) complex was synthesized.With the complex as a catalyst, tert-butyl hydroperoxide as the oxidant, styrene and cyclohexene The effects of temperature, time, amount of catalyst and solvent on the catalytic performance of homogeneous olefin epoxidation were investigated.The results showed that under the optimal conditions, the conversion of cyclohexene was 88% The selectivity of cyclohexane was 98%, the conversion of styrene was 84%, the selectivity of styrene oxide was 76% .The catalyst was recovered by simple separation and the catalytic activity remained basically unchanged. The mechanism of the chemical reaction was discussed.