Retro??ene reactions in heterocyclic synthesis. II. A facile synthetic method for 4??hydroxy??2??pyridones

K Ito, S Miyajima

Index: Ito, Kunio; Miyajima, Shingo Journal of Heterocyclic Chemistry, 1992 , vol. 29, # 5 p. 1037 - 1044

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Citation Number: 7

Abstract

Abstract Schiff's bases 1 derived from ketones and t-butylamine reacted with diphenyl malonate, diphenyl methyl-malonate and diphenyl phenylmalonate to give 4-hydroxy-2- pyridones 4–6. Schiff's bases b on reaction with trimethyl methanetricarboxylate afforded 4-