文献类型：期刊文献

中文题名：Imidazolium ionic liquid-supported sulfonic acids:Efficient and recyclable catalysts for esterification of benzoic acid

英文题名：Imidazolium ionic liquid-supported sulfonic acids:Efficient and recyclable catalysts for esterification of benzoic acid

作者：Yue Qin Cai[1];Guo Qiang Yu[2];Chuan Duo Liu[3];Yuan Yuan Xu[2];Wei Wang[2]

机构：[1]School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China;[2]School of Chemistry and Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;[3]Shanghai Key Laboratory of Chemical Biology,Institute of Pesticides&Pharmaceuticals,East China University of Science and Technology,Shanghai 200237,China

年份：2012

卷号：23

期号：1

起止页码：1

中文期刊名：Chinese Chemical Letters

外文期刊名：中国化学快报（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2011_2012】；

基金：the National Natural Science Foundation of China(No.20676033);China Postdoctoral Science Foundation(No.20070410169);Shanghai Leading Academic Discipline Project(No.B507) for financial support

语种：英文

中文关键词：IL-supported sulfonic acid Catalyst Esterification reaction Benzoic acid

外文关键词：IL-supported sulfonic acid Catalyst Esterification reaction Benzoic acid

摘要：Several imidazolium ionic liquid（IL）-supported sulfonic acids with different anions,[C_3SO_3Hmim]HSO_4,[C_3SO_3Hmim]BF_4, [C_3SO_3 Hmim]PF_6,and[C_3SO_3Hmim]CF_3SO_3,were synthesized and applied as catalysts for esterification reaction of benzoic acid. The experimental results indicate that imidazolium IL-supported sulfonic acid containing anion of HSO_4^- shows the best catalytic activity.Only when less[C_3SO_3Hmim]HSO_4（0.3 equiv.） applied,was the product obtained with high yield of 97%.Furthermore, the produced esters could be separated by decantation,and the catalyst could be reused after the removal of water.
Several imidazolium ionic liquid（IL）-supported sulfonic acids with different anions,[C_3SO_3Hmim]HSO_4,[C_3SO_3Hmim]BF_4, [C_3SO_3 Hmim]PF_6,and[C_3SO_3Hmim]CF_3SO_3,were synthesized and applied as catalysts for esterification reaction of benzoic acid. The experimental results indicate that imidazolium IL-supported sulfonic acid containing anion of HSO_4^- shows the best catalytic activity.Only when less[C_3SO_3Hmim]HSO_4（0.3 equiv.） applied,was the product obtained with high yield of 97%.Furthermore, the produced esters could be separated by decantation,and the catalyst could be reused after the removal of water.