Tosic acid-on-silica gel: A cheap and eco-friendly catalyst for a convenient one-pot synthesis of substituted benzimidazoles

被引：49

作者：

Chakrabarty, Manas ^{[1
]}

Mukherjee, Ratna

Karmakar, Sulakshana

Harigaya, Yoshihiro

机构：

[1] Bose Inst, Dept Chem, Kolkata 700009, W Bengal, India

[2] Kitasato Univ, Dept Pharmaceut Sci, Tokyo, Japan

来源：

MONATSHEFTE FUR CHEMIE | 2007年 / 138卷 / 12期

关键词：

benzimidazoles; synthesis; o-phenylenediamines; aryl aldehydes; tosic acid-on-silica gel;

D O I：

10.1007/s00706-007-0714-2

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

2-Substituted and 1,2-disubstited benzimidazoles were prepared efficiently from o-phenylenediamines and aryl aldehydes using p-toluenesulphonic acid (5mol%)-on-silica gel as a cheap and environmentally benign catalyst.

引用

页码：1279 / 1282

页数：4

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