Microwave accelerated preparation of [bmim][HSO4] ionic liquid:: an acid catalyst for improved synthesis of coumarins

被引：141

作者：

Singh, V ^{[1
]}

Kaur, S

Sapehiyia, V

Singh, J

Kad, GL

机构：

[1] Thapar Inst Engn & Technol, Sch Chem & Biochem, Patiala 147004, Punjab, India

[2] Panjab Univ, Dept Chem, Chandigarh 160014, India

来源：

CATALYSIS COMMUNICATIONS | 2005年 / 6卷 / 01期

关键词：

room temperature ionic liquid; Pechmann reaction; acidic counterion; microwave irradiation; bmim][HSO4] (1-butyl-3-methyl-imidazolium; hydrogen sulphate);

D O I：

10.1016/j.catcom.2004.10.011

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A efficient and easy method for preparation of (1-butyl-3-methyl-imidazolium hydrogen sulphate) ionic liquid using sodium bisulphate in place of concentrated sulphuric acid by microwave irradiation had been developed by us with manifold reduction in time. Further, this acidic room temperature ionic liquid has been exploited for the synthesis of coumarins under microwave irradiation and solventless conditions in short duration of time with quantitative yields, for the first time. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：57 / 60

页数：4

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