聚苯乙烯-铂络合物对不饱和化合物硅氢加成反应的催化活性

合成了聚苯乙烯－铂络合物，研究了它对不同类型不饱和化合物与甲基一氯硅烷及甲基氢二乙氧基硅烷硅氢加成反应的催化特性。结果表明，其催化活性和选择性受不饱和化合物的电子效应和空间位阻效应以及硅氯化试剂结构等多种因素的影响。聚苯乙烯－铂络合物对连有一个取代基的苯乙烯、丙烯酸甲酯与 氯硅烷及甲基氢二乙氧基硅 硅氢加成反应具有很高的催化活性，对连有两个取代基的甲基丙烯酸甲酯无催化活性；该催化剂可选择性催化烯丙

Catalytic Properties of PSt-Pt Complex for Hydrosilylation of Unsaturated Compounds

The microbead of thiolmethylene cross-linking polystyrene supported platinum complex was prepared first,and then used to catalyze the hydrosilylation of different kind of unsaturated compounds with dichloromethyl silane and with diethoxymethyl silane.It was found that the catalytic activity and selectivity was influenced significantly by electronic and steric effects of unsaturated compounds and by the structure of silane containing Si-H.