“一锅法”合成离子液体1-乙基-3-甲基咪唑醋酸盐

摘要

A ionic liquid, 1-ethyl-3-methylimidazolium acetate in yield of 87% , was synthesized byrnone-pot method from 1 -methylimidozole, bromethyl and lead acetate. The structure was confirmed byrnUV, IR and elemental analysis. The optimal reaction conditions at 60 ℃ for 20 h were as follows: 1-rnmethylimidazole was 100 mmol, n( bromethyl) : n( 1-methylimidazole) : n( lead acetate) was 3.6:rn2.0:1.0.%以1-甲基咪唑,溴乙烷和乙酸铅为原料,采用“一锅法”合成了离子液体1-乙基-3-甲基咪唑醋酸盐,产率87％,其结构经UV,IR和元素分析确证.优化反应条件为:1-甲基咪唑100 mmol,n(溴乙烷):n(1-甲基咪唑):n(乙酸铅)=3.6:2.0:1.0,于60℃反应20h.