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Paper | Regular issue | Vol 51, No. 10, 1999, pp.2399-2406
Published online, 1st January, 1970
DOI: 10.3987/COM-99-8633
Synthesis of Furo[2,3-c]quinolin-4(5H)-ones

Krishna C. Majumdar,* Anup K. Kundu, and Paritosh Biswas

*Department of Chemistry, University of Kalyani, Kalyani-741 235, W. B., India

Abstract

A number of 1-aryloxymethyl-3H-pyrano[2,3-c]quinolin-5(6H)-ones (4a-d, 4f-i) on heating in N,N-diethylaniline for 8 h underwent an unusual ring contraction to give 1-aryloxymethyl-2-methylfuro[2,3-c]quinolin-4(5H)-ones(5a-d, 5f-i) in 66-79 % yields.