含氨基酸侧键的有机硅高分子催化剂——Ⅷ·聚γ—(甘—苏二肽基)丙基硅氧烷钯催化剂的合成及其加氢活性  

STUDY OF AMINO ACID-CONTAINING POLYSILOXANE SUPPORTED CATALYSIS. Ⅷ. Synthesis and Hydrogenation Activity of Poly-r(glycyl-threonine)propylsiloxane Palladium Catalysts

作　　者：游江[1] 刘基万[1] 毛云中 陈义长 

机构地区：[1]武汉大学化学系,武汉430072

出　　处：《离子交换与吸附》1992年第1期26-29,共4页Ion Exchange and Adsorption

基　　金：国家自然科学基金

摘　　要：通过简便的方法制备了五种不同N/Pd摩尔比的聚r—(甘一苏二肤基)丙基硅氧烷钯催化剂。结构表征指出,这类高分子催化剂的活性中心可能是氨基酸的羧基和PdCl_2配位,对几种底物的起始加氢速度表明,标题催化剂有很好的催化活性,当N/Pd摩尔比为15.1时,常温常压下对丙烯腈的起始加氢速度达593.mlH_2/min'mmolPd,在极性有机溶剂中的催化活性要比在非极性溶剂中大。Five poly-r- (glycylthreonine)propylsiloxane palladium catalysts in different N/Pd molarratios were prepared by a simple method. Its structural charaterization indicates that the active center may be a complex compound composed of the COOH in the amino acid ligand and the PdCl2molecule.On mild condition , the hydrogenation activity of the title compouns is high for several substrates. The initial hydrogen absorption rate for acrylonitrile hydrogenation is 2593. 5mL H2/min . mmol Pd when the N/Pd molarratio is 15. 1. The catalytic activity in polar organic solvent is better than in non-polar solvent.

关 键 词：钯 聚硅氧烷 甘-苏二肽 催化剂 

分 类 号：TQ426.92[化学工程]