Efficient, green and solvent-free synthesis of tetrasubstituted imidazoles using SbCl3/SiO2 as heterogeneous catalyst

被引：0

作者：

Safari, Javad ^{[1
]}

Gandomi-Ravandi, Soheila ^{[1
]}

Naseh, Simin ^{[1
]}

机构：

[1] Univ Kashan, Coll Chem, Dept Chem, Organ Chem Res Lab, Kashan, Iran

来源：

JOURNAL OF CHEMICAL SCIENCES | 2013年 / 125卷 / 04期

关键词：

Imidazole; solvent-free conditions; four-component reaction; heterogeneous catalyst; Lewis acid; ONE-POT SYNTHESIS; HIGHLY SUBSTITUTED IMIDAZOLES; 1,2,4,5-TETRASUBSTITUTED IMIDAZOLES; ANTIMONY-TRICHLORIDE; ALPHA; BETA-UNSATURATED KETONES; MICROWAVE IRRADIATION; SELECTIVE CLEAVAGE; REUSABLE CATALYSTS; MICHAEL ADDITION; ACID CATALYST;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Antimony trichloride absorbed on silica gel (SbCl3/SiO2) efficiently catalyses the four-component cyclocondensation of 1,2-diketone, aldehyde, ammonium acetate, and primary amine under solvent-free conditions to afford the corresponding tetrasubstituted imidazoles in high yields. The main merit of this study is introducing a novel catalyst to successful synthesis of a wide range of 1,2,4,5-tetrasubstituted imidazoles for the first time. The proposed method involves features such as simplicity, generality, fairly good efficiency, and reusability of the catalyst.

引用

页码：827 / 833

页数：7

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