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Communication | Regular issue | Vol 2, No. 3, 1974, pp.303-307
Published online, 1st January, 1970
DOI: 10.3987/R-1974-03-0303
Reductive Cyclization of α-(6-Nitroveratrylidene)-γ-butyrolactone with Triethyl Phosphite

Frank F. Ebetino, Keiichiro Fukumoto, and Tetsuji Kametani*

*Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan

Abstract

The reaction of triethyl phosphite with α-(6-nitroveratrylidene)-γ-butyrolactone (5) produced a mixture of 3,4-dihydro-7,8-dimethoxy[1,3]oxazino[3,4-a]indol-1-one (8), 2,3-dihydro-6,7-dimethoxyfuro[2,3-b]quinoline (9) and ethyl 5,6-dimethoxyindole-2-carboxylate (10).