有机硅聚合物过渡金属络合催化剂的研究 Ⅺ.聚-ω-（二苯膦基）十一烷基硅氧烷铂络合物的合成及其催化活性

有机硅聚合物过渡金属络合催化剂的研究 Ⅺ.聚-ω-（二苯膦基）十一烷基硅氧烷铂络合物的合成及其催化活性 SILICONE SUPPORTED TRANSITION METAL COMPLEX CATALYSTS——Synthess of poly-ω-diphenylphosphinoundecy lsiloxane platium complex and its catalytic activity for hydrosilylation and hydrogenation of unsaturated compounds 肖超勃 first-author 林颐庚 罗承友 田珍姣 陈远荫 本文报导聚-ω-（二苯膦基）十一烷基硅氧烷铂络合物的合成及其催化活性。在上述铂络合物的催化下,分别进行硅氢化和氢化实验。将不同底物和三甲氧基硅烷反应,实验结果表明Ⅰ-己烯的硅氢加成速度大于十二烯、苯乙烯、烯丙基环氧丙基醚。在铂络合物[Ⅱ]存在下,Ⅰ-己烯在15小时内其加成产率可达80%。进行氢化实验时,各种底物的相对活性大致如下:癸烯>十二烯>醋酸乙烯>苯乙烯>环己烯,催化剂用量增加,其加成速度增加。温度升高,其速增大。铂络合物经简单回收可再用。 A Silica-supported poly-ω-dipheylphosphinoundecylsiloxane platium complex has been synthesized starting from ω-chloroundeeyltriethoxysilane via phosp-hination with LiPPh. followed by hydrolysis and immobilization, and then treating the above compound with H z PtCI 6 . 6H 2 O. Their catalytic properties on hydrosllylation and hydrogenation of unsaturated compounds have been inv-estigated. We have found that the addition of trimethoxysilation to 1-h exene in the presence of complex catalyst[Ⅱ]yields 80-90% of n-hexyltrime-thoxysilane. The rate of reaction have been measured and found to decreasein the order: Hexene > Styrene, Dodecene, Allyl glycidyl ether Rate of hydrogenation of various substrates increased in the order, Cyclohexene < Styrene < Vinyl Acetate < Dodecene < Deceneo Platium complex could be easily recovered by filtration after each reaction and repeatedly us-ed for several times while maintaining the same activity. 铂络合物 催化剂 氢化 硅氢化 聚-ω-二苯膦基十一烷基硅氧烷 platium complex catalyst hydrogention hydrosilylation poly-ω-diphenylphos phinoundecylsiloxane 1988-01-01 2021-04-01 1