One-pot synthesis of 2,4,5-tri-substituted and 1,2,4,5-tetra-substituted imidazoles catalyzed by poly(4-vinylpyridinium tribromide) (PVPBr3) or citric acid

被引：14

作者：

Ghorbani-Choghamarani, Arash ^{[1
]}

Shiri, Lotfi ^{[1
]}

Azadi, Gouhar ^{[1
]}

Pourbahar, Nasrin ^{[1
]}

机构：

[1] Ilam Univ, Dept Chem, Fac Sci, Ilam, Iran

来源：

RESEARCH ON CHEMICAL INTERMEDIATES | 2015年 / 41卷 / 08期

关键词：

Poly(4-vinylpyridinium tribromide); Citric acid; Benzil; Ammonium acetate; Aromatic aldehydes; TETRASUBSTITUTED IMIDAZOLES; IONIC LIQUID; 1,2,4,5-TETRASUBSTITUTED IMIDAZOLES; 2,4,5-TRISUBSTITUTED IMIDAZOLES; REUSABLE CATALYST; HIGHLY-EFFICIENT;

D O I：

10.1007/s11164-014-1583-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An efficient, one-pot method for preparation of tri and tetra-substituted imidazoles by condensation of benzil, aldehydes, and ammonium acetate or primary amine in the presence of a catalytic amount of citric acid or poly(4-vinylpyridinium tribromide) (P.V.P.Br-3) under solvent-free conditions is reported. The remarkable advantages of this method are the inexpensive green catalyst, mild reaction conditions, simple procedures, and excellent yields of products. .

引用

页码：4997 / 5005

页数：9

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