聚合物因载化聚乙二醇季铵盐型相转移催化剂在有机合成中的应用  

UTILIZATION OF POLYMER-SUPPORTED POLY(ETHYLENE GLYCOL)AMINE AS TRIPHASE-TRANSFER CATALYST IN ORGANIC SYNTHESIS

作　　者：梁逊[1] 李顺子[1] 冯鸣华[1] 

机构地区：[1]南开大学化学系

出　　处：《离子交换与吸附》1996年第4期309-316,共8页Ion Exchange and Adsorption

摘　　要：本文考察了固载化聚乙二醇季铵盐作为相转移催化剂在咪唑Ｎ－烷基化反应，Ｗｉｌｌｉａｍｓｏｎ混合醚的合成以及卤素置换反应中的应用，着重研究了改变反应条件对催化反应的影响，就催化剂的重复使用能力和催化剂结构对其催化效率的影响也略作探讨。实验证明，本催化剂有较高的催化活性，有实际应用价值。Polymer-supported poly(ethylene glycol) amine was investigated as triphase-- transfer catalysts in reactions of: (1 ) The N--alkylation of imidazole with alkylhalide. (2) Williamson ether synthesis. (3) The reaction of alkylhalide with metalhalide. The influence of different conditions on the reactions was studied. Thereusability of the catalysts and the effect of morphology of the catalysts were alsodiscussed. The catalysts were proved to be useful.

关 键 词：有机合成 应用 聚合物固载化 聚乙二醇季铵盐型 相转移催化剂 结构 催化活性 

分 类 号：O621.3[理学—有机化学] O643.361[理学—化学]