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Paper | Regular issue | Vol 65, No. 10, 2005, pp.2329-2337
Published online, 12th August, 2005
DOI: 10.3987/COM-05-10453
Synthesis of New Trifluoromethyl Substituted 11H-Isoindolo[2,1-a]benzimidazol-11-one Derivatives

Boddupally P V Lingaiah, Tallapally Yakaiah, Pamulaparthy S Rao,* and Banda Narsaiah

*Fluoroorganic Division, Indian Institute of Chemical Technology, Hyderabad 500 007, India

Abstract

A convenient method has been developed for the synthesis of new trifluoromethyl-substituted 11H-isoindolo[2,1-a]benzimidazol-11-one derivatives from 3-nitro-5-trifluoromethyl-o-phenylenediamine and aromatic anhydrides on the surface of silica gel impregnated with ZnCl2 under solvent free microwave irradiation conditions.