含氨基酸侧链的有机硅高分子催化剂——Ⅺ.聚γ-（组氨酸基）丙基硅氧烷钯催化剂的合成及其催化加氢活性

含氨基酸侧链的有机硅高分子催化剂——Ⅺ.聚γ-（组氨酸基）丙基硅氧烷钯催化剂的合成及其催化加氢活性 STUDY OF POLYSILOXANE WITH AMINO ACID SIDE CHAIN SUPPORTED CATALYSTS——Ⅺ.The Synthesis,Hydrogenation Activity and Structural Characterization of Poly-γ-（Histidine）propylsiloxane palladium Catalysts 刘基万 1 first-author 游江 1 王西新 1 武汉大学化学系 武汉大学化学系 报道了SiO 2 负载的聚γ-（组氨酸基）丙基硅氧烷钯催化剂的合成、催化加氢活性及其结构表征.结果表明,标题催化剂对不同底物均有高的催化加氢活性,当N/Pd摩尔比为6.1∶1时,催化丙烯腈的起始加氢速度高达5910 mL H 2 /min·mmol Pd.不同溶剂对催化剂的活性有很大影响. This paper is concerned with the synthesis of poly-γ-（histidine）propylsioxane palladium catalysts in different N/Pd mol ratioes and the study on its hydrogenation activity for olefins and nitrobenzene. The structural characterization of the catalyst indicates that the activity center may be complex com- pound composed of both the oxygen and nitrogen atoms of histidine ligand and PdCl 2 . For a lot of sub- trates,the hydrogenation activity of the title catalysts is high. The initial absorption hydrogen rate of acrylonitrile is high up to 5910 mLH 2 /min·mmolPd when the N/Pd ratio is 6. 1. Besides, the influ- ence of various solvents on the rates of hydrogenation absorption make a world of difference. 高分子催化剂 聚硅氧烷 组氨酸 加氢活性 polymer catalyst polysiloxane histidine hydrogenation activity O634.41;O63 国家基金委员会资助项目 1993-01-01 2021-04-01 1