PEG-mediated catalyst-free expeditious synthesis of 2-substituted benzimidazoles and bis-benzimidazoles under solvent-less conditions

被引：124
|
作者：
Mukhopadhyay, Chhanda [1 ]
Tapaswi, Pradip Kumar [1 ]
机构：
[1] Univ Calcutta, Dept Chem, Kolkata 700009, India
来源：
TETRAHEDRON LETTERS | 2008年 / 49卷 / 43期
关键词：
aldehydes; ortho-phenylenediamines; polyethylene glycol; catalyst-free; solvent-less conditions; 2-substituted benzimidazoles; bis-benzimidazoles;
D O I：
10.1016/j.tetlet.2008.08.041
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A wide variety of 2-substituted benzimidazoles and bis-benzimidazoles were synthesized in high yields by PEG-mediated catalyst-free synthesis under solvent-less conditions. The products Were directly recrystallized from hot methanol. The reaction occurred giving excellent yields with low as well as high molecular weight PEGs. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6237 / 6240
页数：4
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