REGIOSPECIFIC AND REGIOSELECTIVE 1,3-DIPOLAR CYCLOADDITION OF DIPOLAR REAGENTS TO UNSYMMETRICAL BISOLEFINIC KETONES IN THE PRESENCE OF CHLORAMINE-T (CAT)

Abstract

ABSTRACT The reaction of 1,5-diaryl-3-methyl-1,4-pentadien-3-one with araldehyde phenylhydrazone/araldoxime in the presence of chloramine-T proceeds regiospecifically in MeOH and regioselectively in AcOH leading to mono- and bis-pyrazolines/ isoxazolines. ACKNOWLEDGMENT The authors are grateful to Council of Scientific and Industrial Research (CSIR), New Delhi, for financial assistance.