聚γ-[N,N-双（β-甲硫乙基）胺基]丙基倍半硅氧烷铑配合物的合成及其催化硅氢化性能

聚γ-[N,N-双（β-甲硫乙基）胺基]丙基倍半硅氧烷铑配合物的合成及其催化硅氢化性能 SYNTHESIS OF POLY-γ-N,N-BIS（β-METHYLMERCAPTOETHYL）AMINOPROPYLSILSESQUIOXANE RHODIUM COMPLEXES AND THEIR CATALYTIC CHARACTERISTICS FOR HYDROSILYLATION OF OLEFINS 陈远荫 1 first-author 卢雪然 1 胡旭波 1 杨业智 1 武汉大学化学系 武汉大学化学系 N,N-双（β-甲硫乙基）γ-（三乙氧硅基）丙胺单独或与十二烷基三乙氧基硅烷一起以气相法二氧化硅固载,再与三氯化铑反应,合成了聚γ-[N,N-双（β-甲硫乙基）胺基]丙基倍半硅氧烷铑配合物.二者均能有效地催化烯烃与三乙氧基硅烷的硅氢加成反应,底物的单程转化数可达2万. The syntheses of a novel type of polymer-supported tridentate rhodium, poly-γ-N, N-bis （β- methylmercaptoethyl） amino propyl silsesquioxane rhodium complexes have been described. The com- plexes were synthesized from N, N-bis（β-methylmercaptoethyl）y-（triethoxysilyl） propylamine by hy- drolysis of the monomer or cohydrolysis of it with dodecyltriethoxysilane and immobilized on fumed silica, followed by reaction with rhodium chloride under Ar atmosphere in acetone, respectively. They exhibited high catalytic activity for the hydrosilylation of olefins by triethoxysilane. The turnover number of olefin could be amounted to 20,000 in one run. The effects of the nature of substrates, the amount of complex used, incorporation of dodecyl group into the polymer ligand, and the reaction temperature on the catalytic activity were investigated. They could be recovered and reused several times with gradual decreases in activity. 硅氢加成催化剂 硅氢加成 负载催化剂 铑配合物 三齿高分子配体 hydrosilylation catalyst hydrosilylation supported catalyst rhodium complex tridentate polymer liqand O634.41;O63 国家自然科学基金资助课题 1993-01-01 2021-04-01 1