Deep eutectic solvent for multi-component reactions: a highly efficient and reusable acidic catalyst for synthesis of 2,4,5-triaryl-1H-imidazoles

被引：19

作者：

Bakavoli, Mehdi ^{[1
]}

Eshghi, Hossein ^{[1
]}

Rahimizadeh, Mohammad ^{[1
]}

Housaindokht, Mohammad Reza ^{[1
]}

Mohammadi, Ali ^{[1
]}

Monhemi, Hassan ^{[1
]}

机构：

[1] Ferdowsi Univ Mashhad, Dept Chem, Fac Sci, Mashhad, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2015年 / 41卷 / 06期

关键词：

2,4,5-Trisubstituted imidazoles; Multi-component reactions; Choline chloride; Deep eutectic solvent; Oxalic acid; ONE-POT SYNTHESIS; TETRASUBSTITUTED IMIDAZOLES; HETEROGENEOUS CATALYST; MICROWAVE IRRADIATION; 2,4,5-TRIARYLIMIDAZOLES; ALDEHYDES;

D O I：

10.1007/s11164-013-1467-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Efficient synthesis of 2,4,5-trisubstituted imidazoles has been achieved by three-component cyclocondensation of benzil or benzoin, an aldehyde, and ammonium acetate by use of an acidic catalyst. The catalyst is a deep eutectic mixture of choline chloride and oxalic acid that is non-toxic and biodegradable. Crucial advantages of this process are high yields, shorter reaction times, easy work-up, purification of products by non-chromatographic methods, and reusability of the catalyst.

引用

页码：3497 / 3505

页数：9

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