Expeditious synthesis of highly substituted 3(2H)-furanone and quinoline by microwave assisted reaction between aldonitrones and dibenzoylacetylene

Abstract

Microwave assisted reaction between various aldonitrones and dibenzoylacetylene gave 2-hydroxy-2,5-diphenyl-4-(phenylamino)furan-3(2H)-one (5) and (3-hydroxy-2-phenylquinolin-4-yl)(phenyl)methanone (8) arising through two distinct reaction pathways in good yields. Compared to reactions carried out under thermal activation, microwave assisted reactions proceeded at considerably faster rates.