Highly efficient one-pot synthesis of trisubstituted imidazoles under catalyst-free conditions

被引:23
作者
Azizi, Najmadin [1 ]
Dado, Nairreh [1 ]
Amiri, Alireza Khajeh [1 ]
机构
[1] Chem & Chem Engn Res Ctr Iran, Tehran, Iran
关键词
aldehyde; benzil; imidazole; atom economic; solvent effect; catalyst free; PRACTICAL SYNTHESIS; ALDEHYDES; CONDENSATION; CARBENES; SYSTEM; WATER;
D O I
10.1139/V11-141
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Operationally simple, atom economical, and scalable synthesis of 2,4,5-trisubstituted imidazoles from benzil, aldehydes, and ammonium acetate is shown to proceed readily in methanol with high yield. The scope of the reaction is quite broad; a variety of aromatic and aliphatic activated and unactivated aldehydes have all been shown to be viable substrates for this reaction. Excellent yields and purity were obtained by washing the products with hot ethanol.
引用
收藏
页码:195 / 198
页数:4
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