Condensation of 3??methylbenzoxazolinone with α, β??unsaturated acids

…, C Lespagnol, D Barbry, D Couturier

Index: Merdji, B.; Lesieur, D.; Lespagnol, C.; Barbry, D.; Couturier, D. Journal of Heterocyclic Chemistry, 1981 , vol. 18, p. 1223 - 1227

Full Text: HTML

Citation Number: 5

Abstract

Abstract The reaction between 3-methylbenzoxazolinone and some unsaturated acids in PPA leads to mixtures of compounds, depending on the acid: 6-crotonyl-(or cinnamoyl)-3- methylbenzoxazolinones, 2, 3-dihydro-2, 5-(or 2, 7) dioxo-3-methylcyclopenta [f] benzoxazoles and 6-(3-oxo-indanyl)-3-methylbenzoxazolinones. The structure of the products was established by 13 C and 1 H nmr spectroscopy and (or) by independent ...