微波及超声波辅助合成溴化1-丁基-3-甲基咪唑  

Synthesis of 1-butyl-3-Methylimidazolium Bromide Ionic Liquid Assisted by Microwave and Ultrasonic Techniques

作　　者：李志强[1] 耿哲[1] 李钦玲[1] 

机构地区：[1]青海民族大学化学与生命科学学院,青海西宁810000

出　　处：《西北民族大学学报（自然科学版）》2014年第1期13-16,48,共5页Journal of Northwest Minzu University(Natural Science)

基　　金：青海民族大学研究生创新项目

摘　　要：用溴代正丁烷与N-甲基咪唑,在微波辐射和超声波协同作用下合成离子液体溴化1-丁基-3-甲基咪唑,通过正交试验设计方法考察实验条件最高温度,合成反应时间,微波功率和超声波功率对合成产率的影响,优选得到最佳的合成所需要的实验条件:超声波功率100 W、微波功率400W、反应时间60min和最高温度60℃.溴化1-丁基-3-甲基咪唑的结构通过红外光谱进行表征.在超声波和微波的协调作用下,此反应具有合成反应所需时间短,合成产物产率高,实验操作过程简便等优点.The synthesis of 1-butyl-3-methylimidazolium bromide ionic liquid reaction between N- mtheylimidazole and n- butyl bromide was studied under the combined assistance of microwave and ultrasonic technique. By using the orthogonal test design, the effects of reaction temperatures, reaction time, microwave power and ultrasonic power on reaction yields of 1-butyl-3-methylimidazolium bromide ionic liquids were performed. The results showed that the optimum synthesis conditions of 1-butyl-3- methylimidazolium bromide ionic liquid were ultrasonic power of 100W and microwave power of 400W for 60rain at 60℃The 1-butyl-3-methylimidazolium bromide was confirmed by infrared spectroscopy. The established process for 1-butyl-3-methylimidazolium bromide syntheses had the advantages of short reaction time, high yield and easy operation resulting from the synergistic action of microwave and ultrasonic.

关 键 词：离子液体 微波 超声波 溴化1-丁基-3-甲基咪唑 辅助合成 

分 类 号：O626[理学—有机化学]