有机硅聚合物过渡金属络合催化剂的合成与活性——Ⅱ聚γ-（m-二苯膦苯基）丙基硅氧烷——钯络合物的某些性质

有机硅聚合物过渡金属络合催化剂的合成与活性——Ⅱ聚γ-（m-二苯膦苯基）丙基硅氧烷——钯络合物的某些性质 THE SYNTHESIS AND ACTIVITY OF SILICONE SUPPORTED TRANSITION METAL COMPLEX CATALYSTS Ⅱ Some Properties of Poly-γ-（m-diphenylphosphinophenyl） propylsiloxane—Palladium Complex 陈远荫 first-author 刘基万 林颐庚 倪继金 肖超勃 王玉华 本文叙述了聚-γ-（m-二苯膦苯基）丙基硅氧烷钯络合物的合成和它在烯烃氢化反应中所表现的催化活性。γ-（m-氯苯基）丙基三氯硅烷用无水乙醇酯化,得到γ-（m-氯苯基）丙基三乙氧基硅烷。后者以二苯膦钾膦化,烟雾状硅胶固载化。所得硅胶固载化的含膦聚合物与氯亚钯酸钠四水合物作用,即得γ-（m-二苯膦苯基）丙基硅氧烷钯络合物。这一络合物在烯烃氢化中显示很高的催化活性和与一般高分子络合钯催化剂不同的选择性。 Poly-γ-（m-diphenylphosphinophenyl）propylsiloxane—palladium complex was prepared and the activity in hydrogenation of olefins was investigated, Thus, γ-（m-chlorophenyl）propyltrichlorosilane was esterified with anhydrous ethanol to give γ-（m-chlorophenyl）propyltriethoxysilane. It was further reacted with Ph 2 PK under nitrogen and immobilized by fumed silica. The obtained phosphine-containing polymer was used to prepare title complex by treatment with sodium chloropalladate tetrahydrate. In hydrogenation of olefins, the title complex exhibited high activity and unusual selectivity. Furthermore, it can be reused without serious loss of activity. 1982-01-01 2021-04-01 1