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Catalytic synthesis of ionic liquids on aspirin at room temperature
Author(s): 
Pages: 98-101
Year: Issue:  1
Journal: Journal of Guizhou Normal University(Natural Sciences)

Keyword:  室温离子液体阿司匹林催化合成;
Abstract: 研究了以几种1,3-二烷基咪唑离子液体为催化剂来合成阿司匹林的反应,考察了反应时间、酸醇摩尔比等对该反应的影响.结果表明:[BMIm]Br离子液体对阿司匹林的合成有较好的催化作用,最佳反应条件为:n水杨酸:n乙酸酐=1:2,催化剂用量2mL,反应温度80~85℃,反应时间3h,收率可达81.6%.产物和离子液体不溶而分层,便于分离,且离子液体可以重复使用.
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