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

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

Full Text: HTML

Citation Number: 13

Abstract

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 ...

~83%

Amberlyst-15–Catalyzed Synthesis of 2-Substituted 1, 3-Benza...

[Rambabu; Murthi, P. Radha Krishna; Dulla, Balakrishna; Basaveswara Rao; Pal, Manojit Synthetic Communications, 2013 , vol. 43, # 22 p. 3083 - 3092]

Traceless solid-phase synthesis of 5-benzoylbenzimidazoles

[Eshghi, Hossein; Rahimizadeh, Mohammad; Shiri, Ali; Sedaghat, Parisa Bulletin of the Korean Chemical Society, 2012 , vol. 33, # 2 p. 515 - 518]

Synthesis of benzimidazoles by Cu 2 O-catalyzed cascade reac...

[Qu, Yanyang; Pan, Lei; Wu, Zhiqing; Zhou, Xiangge Tetrahedron, 2013 , vol. 69, # 6 p. 1717 - 1719]

Barium Manganate Oxidation in Organic Synthesis: Part III: O...

[Srivastava, R. G.; Venkataramani, P. S. Synthetic Communications, 1988 , vol. 18, # 13 p. 1537 - 1544]