摘要
Preparation of Co schiff base complex immobilized on MCM\|41 by the 3\|aminopropyltriethoxysilane modified mesoporous molecular sieve MCM\|41 reacted with cobalt nitrate and salicylaldehyde. Such cobalt schiff base complex immobilized on MCM\|41 could be used as the catalyst, with O\-2 as the oxidant and isobutyraldehyde as the sacrificial reagent, to catalyze the epoxidation of cyclohexene and styrene in CH3CN. After 4h of reaction, the conversion of cyclohexene reached 98% and the selectivity to epoxy cyclohexane, 88%; the conversion of styrene reached 89% and the selectivity, 69%. In addition, the catalyst could remain its catalytic activity after several reuses.
Preparation of Co schiff base complex immobilized on MCM\|41 by the 3\|aminopropyltriethoxysilane modified mesoporous molecular sieve MCM\|41 reacted with cobalt nitrate and salicylaldehyde. Such cobalt schiff base complex immobilized on MCM\|41 could be used as the catalyst, with O\-2 as the oxidant and isobutyraldehyde as the sacrificial reagent, to catalyze the epoxidation of cyclohexene and styrene in CH3CN. After 4h of reaction, the conversion of cyclohexene reached 98% and the selectivity to epoxy cyclohexane, 88%; the conversion of styrene reached 89% and the selectivity, 69%. In addition, the catalyst could remain its catalytic activity after several reuses.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2003年第4期310-312,共3页
Journal of Molecular Catalysis(China)
关键词
介孔分子筛
表面修饰
席夫碱络合物
烯烃环氧化
催化
Mesoporous molecular sieves
Surface modification
Schiff base complex
Epoxidation of alkenes
Catalysis
