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乙烯基三乙氧基硅烷和氯铂酸在无水碳酸钠存在下反应可以生成乙烯基乙氧基硅烷一铂络合物,该络合物可以固载于二氧化硅表面或自行缩聚成聚乙烯基硅氧烷-铂络合物,它们对不饱和化合物和硅氢化合物的加成反应具有良好的催化活性.例如,络合(C)在80℃、10分钟或25℃、3小时可使己烯-1与甲基二乙氧基硅烷的反应转化率达95,同时,催化剂可以回收反复使用。
The reaction of vinyltriethoxysilane and chloroplatinic acid in the presence of anhydrous sodium carbonate produces a platinum ethylenoxy silane complex which may be supported on silica surface or self-polycondensed to poly Vinylsiloxane-platinum complexes which have good catalytic activity for the addition reaction of unsaturated compounds and hydrosilanes, for example, complex (C) at 80 ° C for 10 minutes or at 25 ° C for 3 hours The conversion of hexene-1 and methyldiethoxysilane reached 95, meanwhile, the catalyst could be recycled for repeated use.