Chemistry of Heterocyclic Compounds p. 795 - 798 (1991)
Update date:2022-08-04
Topics:
Glotova, T. E.
Nakhmanovich, A. S.
Romanenko, L. S.
Sigalov, M. V.
1,2,4-Triazolo<3,4-b>-1,3,4-thiadiazepines have been prepared by treating α-acetylenic ketones with 4-amino-3-mercapto-1,2,4-triazole in glacial acetic acid.Terminal acetylenic ketones react with the triazole to form 4-amino-3-acylvinylthio-1,2,4-triazoles.Heating the latter with hydrazine hydrate in alcohol yields substituted pyrazoles.
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