One-pot synthesis of various xanthene derivatives using ionic liquid1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable catalyst under solvent-free conditions

作     者：Farhad Shirini Asieh Yahyazadeh Kamal Mohammadi 

作者机构：Department of ChemistryCollege of Science.University of Guilan 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2014年第25卷第2期

页      面：341-347页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the University of Guilan Research Council for the partial support 

主　　题：Xanthene derivatives One-pot reaction 1,3-Disulfonic acid imidazolium hydrogensulfate Ionic liquid Solvent-free conditions 

摘      要：In this study, 1,3-disulfonic acid imidazolium hydrogen sulfate （DSIMHS） is used as an efficient and reusable ionic liquid for the green, mild, and efficient synthesis of xanthenes under solvent-free conditions. Simple and easy work-up, low cost, green process, short reaction times and excellent yields of the products are the advantages of this procedure. Further, the catalyst can be recycled and reused at least for four times without a noticeably decrease in its catalytic activity.