Acidic task-specific ionic liquid as catalyst of microwave-assisted solvent-free Biginelli reaction

被引：0
|
作者：
A. Arfan
L. Paquin
J. P. Bazureau
机构：
[1] Universite de Rennes 1,Laboratoire Sciences Chimiques de Rennes. UMR CNRS 6510 Groupe lngenierie Chimique & Molecules pour le Vivant (ICMV)
来源：
Russian Journal of Organic Chemistry | 2007年 / 43卷
关键词：
Ionic Liquid; Microwave Irradiation; Hydrogen Sulfate; Biginelli Reaction; Methyl Acetoacetate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A simple and effective synthesis of 3,4-dihydropyrimidin-2(1H)-one and 3,4-dihydropyrimidine-2(1H)-thione derivatives has been developed on the basis of three-component condensation of substituted aromatic and heterocyclic aldehydes, methyl acetoacetate, and urea or thiourea in the presence of 10% of an acidic task-specific ionic liquid ([C4mim][HSO4]) as catalyst under microwave irradiation in the absence of a solvent. The proposed procedure ensures short reaction times (4.4–8 min) and good yields after purification by recrystallization.
引用
收藏
页码：1058 / 1064
页数：6
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