Benzoxazol??2 (3H)??one and 1, 3, 4??oxadiazol??2 (3H)??one derivatives from substituted enaminones and ketoenamines

M Forchiassin, G Pitacco, A Risaliti…

Index: Forchiassin, M.; Pitacco, G.; Risaliti, A.; Russo, C.; Valentin, E. Journal of Heterocyclic Chemistry, 1983 , vol. 20, p. 305 - 309

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Citation Number: 8

Abstract

Mar-Apr 1983 Benzoxazol-2(3Ä)-one and 1,3,4-Охаа1аго1-2(ЗД)-опе Derivatives 309 (ethanol); ir: 3180 broad (NH + OH), 1725 (ethoxy-carbonyl C=0), 1655 sh, 1635 cm- (C=0); "H-nmr: о 11.0(broad s, NH, IH), 11.8 (broad 8, OH, IH). The 'H-nmr spectrum of 1,3-cyclohexanedione, recorded in the same solvent shows the signal of the OH proton at 5 11.65. Anal. Caled, for C16H17N,07: C, 52.89; H, 4.72; N, 11.57. Found: C, 52.79; H, ...