Benzohydrazides, benzothiohydrazides, and benzamidrazones as sources of 1, 3, 4 (2H)??oxadiazolenones, 1, 3, 4 (2H)??thiadiazolenones, and 1, 2, 4 (5H)?? …

…, MS Gibson, SR Khan, GA Pawalchak…

文献索引：Barnish, Ian T.; Fung, Shing C.; Gibson, Martin S.; Khan, Saeed R.; Pawalchak, Gordon A.; Tse, Kin M. Journal of Heterocyclic Chemistry, 1986 , vol. 23, p. 417 - 419

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被引用次数: 4

摘要

Abstract Benzohydrazides, benzothiohydrazides, and benzamidrazones have been converted to 1, 3, 4 (2H)-oxadiazolenones, 1, 3, 4 (2H)-thiadiazolenenones, and 1, 2, 4 (5H)- triazolenones respectively by reaction with ethyl chloroformate, with ethyl thiolchloroformate, and with phenyl isocyanate. In some reactions, a carbamate or urea has been isolated as intermediate.