Tetrahedron Letters

Eco-friendly synthesis of 2-aryl-1-arylmethyl-1H-benzimidazoles using alumina-sulfuric acid as a heterogeneous reusable catalyst

A Pramanik, R Roy, S Khan, A Ghatak, S Bhar

文献索引：Pramanik, Amit; Roy, Rimi; Khan, Sagar; Ghatak, Avishek; Bhar, Sanjay Tetrahedron Letters, 2014 , vol. 55, # 10 p. 1771 - 1777

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被引用次数: 13

摘要

Abstract A cost-effective and eco-friendly synthesis of 2-aryl-1-arylmethyl-1H- benzimidazoles has been developed through the condensation of different aldehydes with o- phenylenediamine using alumina-sulfuric acid as a recyclable heterogeneous solid acid catalyst. Morphological properties of the catalyst have been investigated. Effect of different solvents and comparison of alumina-sulfuric acid with different acid catalysts have also ...