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Synthesis and application of silica phenyl sulfonic acid as a solid acid heterogeneous catalyst for one-pot synthesis of 2-aryl-1-arylmethyl-1H-1,3-benzimidazoles and bis(indolyl)methanes in water

✍ Scribed by Hojat Veisi; Alireza Sedrpoushan; Mohammad Ali Zolfigol; Farajollah Mohanazadeh

Publisher
Journal of Heterocyclic Chemistry
Year
2011
Tongue
English
Weight
302 KB
Volume
48
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Silica phenyl sulfonic acid (SPSA) was prepared and effectively used in the one‐pot synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles from o‐phenylenediamine with aldehydes in water in the presence of tetrabutyl ammonium bromide with good to high yield. Also, SPSA was used as a catalyst for the synthesis of bis(indolyl)methanes in water. J. Heterocyclic Chem., (2011).

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