氯化胆碱的绿色合成  

Green synthesis of choline chloride

作　　者：陈瑞瑞[1] 袁存光[1] 

机构地区：[1]中国石油大学化学化工学院,山东青岛266555

出　　处：《现代化工》2012年第2期59-61,共3页Modern Chemical Industry

摘　　要：以环氧乙烷和三甲胺盐酸盐为原料,用经过酸碱活化的绿色环保阴离子交换树脂为催化剂合成氯化胆碱。用质量分数为0.5%的活化的阴离子交换树脂作催化剂,在n(环氧乙烷)∶n(三甲胺盐酸盐)=1.1∶1,反应温度为60℃,反应时间为1 h的条件下,合成的氯化胆碱产品的产率≥96%。催化剂经酸碱活化1次可重复使用若干次而不影响催化效果。In this paper,a kind of environment friendly anion exchange resin catalyst which was activated by acid and base was applied in synthesizing choline chloride. The ethylene oxide and trimethylamine hydroehlorate were used as the raw material in this study. When the weight of catalyst is 0. 5% of total reactant mass, molar ratio of C2H4O and （CH3 ）3 N-HC1 is 1.1, the reaction temperature is 60℃ and the reaction time is 1 hour, the yield of choline chloride is above 96%. The activity of catalyst is almost the same as the one activated once, when it is used several times.

关 键 词：氯化胆碱 活化树脂催化剂 环氧乙烷 三甲胺盐酸盐 合成 

分 类 号：O629.2[理学—有机化学]