应用化学2011，Vol.28Issue(9)：1096-1098,3.DOI:10.3724/SP.J.1095.2011.00533
微波促进酸性离子液体催化水杨酸酯化
Esterification of Salicylic Acid Using Acidic Ionic Liquid as Catalyst under Microwave Irradiation
摘要
Abstract
A acidic ionic liquid [ MIMPS ] HSO4 was synthesized and used for the esterification of salicylic acid. Factors including reaction temperature, reaction time, ratio of reactant and amount of ionic liquid were investigated. It was found that the optimized conditions were at 95 t, microwave irradiation for 20 min, molar ratio of methanol to salicylic acid with 3:1, amount of [ MIMPS] HSO4 10 mmol. The yield and selectivity of methyl salicylate were 91. 9% and 99. 0% , respectively. [ MIMPS] [ HSO4 ] as a catalyst can be recycled for 4-times without obvious decrease in activity. Microwave irradiation could reduce reaction time under the same conditions. The yield of esterification decreased as the carbon chain increases, and also when the secondary alcohols were used instead of the primary alcohols.关键词
微波/酸性离子液体/酯化/水杨酸甲酯Key words
microwave/acidic ionic liquids/esterification/methyl salicylate分类
化学化工引用本文复制引用
朱文帅,吴沛文,时花,李华明,黄卫红,闫永胜,王志高..微波促进酸性离子液体催化水杨酸酯化[J].应用化学,2011,28(9):1096-1098,3.基金项目
国家自然科学基金(20876071,21076099)、镇江市工业攻关(GY2007010)、中国博士后基金(201003556)、江苏省博士后基金(1001025C)、江苏大学高级人才启动基金(09JDG063)资助项目 （20876071,21076099）
