Recherches en série triazépine XVI.Condensation des composés β‐dicarbonylés avec les thiosemicarbazides
2010
Condensations of β-dicarbonyl compounds with thiosemicarbazide and 1- and 2-methylthiosemicarbazide give three types of heterocyclic compounds. Depending upon the reagents and experimental conditions, triazepinones, triazepines, 1,2,4-triazolines or pyrazoles are formed. Mechanisms explaining these cyclisations are proposed.
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