NANO-CEO2 AS A NOVEL AND EFFICIENT CATALYST TO SYNTHESIS OF 2-SUBSTITUTED BENZIMIDAZOLES

NANO-CEO2 AS A NOVEL AND EFFICIENT CATALYST TO SYNTHESIS OF 2-SUBSTITUTED BENZIMIDAZOLES

o-phenylenediamine derivatives readily reacts with aldehydes derivatives in the presence of Nano-CeO2 as catalyst to yield 2-substituted benzimidazoles in very good yields