Abstract

RE-USABLE NANO FE3O4 CATALYSED FOR HIGH YIELD SYNTHESIS OF 1,2-DISUBSTITUTED BENZIMIDAZOLE DERIVATIVES IN ETHANOL

D. Maheswara Reddy* and V. Krishna Reddy

ABSTRACT

Re-usable nano Fe3O4 catalyzes efficiently, the condensation of o-phenylenediamine with various aldehydes in solution condition to afford the corresponding 1,2-disubstituted benzimidazoles derivatives in good to excellent yields (

Keywords: o-phenylene diamine, 1,5-benzodiazepine.