Tetrahedron Letters

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

C Mukhopadhyay, PK Tapaswi

Index: Mukhopadhyay, Chhanda; Tapaswi, Pradip Kumar Tetrahedron Letters, 2008 , vol. 49, # 43 p. 6237 - 6240

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Citation Number: 103

Abstract

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.

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