New general synthesis of tetrahydro??1, 2, 4, 5??tetrazin??3 (2H)??one derivatives and stable 3, 4??dihydro??3??oxo??1, 2, 4, 5??tetrazin??1 (2H)??yl radical derivatives

…, GÉO Barbier, S Capelle, JP Catteau

文献索引：Milcent, Rene; Barbier, Geo; Capelle, Sylvie; Catteau, Jean-Pierre Journal of Heterocyclic Chemistry, 1994 , vol. 31, # 2 p. 319 - 324

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被引用次数: 33

摘要

Abstract Reactions of 2-chloroformylhydrazones of aromatic aldehydes or ketones 2 with various hydrazines were converted to monocarbonohydrazone derivatives 3 or 5 and/or tetrahydro-1, 2, 4, 5-tetrazin-3 (2H)-one derivatives 6, 7. By oxidation with lead dioxide, compounds 6 were transformed into stable 3, 4-dihydro-3-oxo-1, 2, 4, 5-tetrazin-1 (2H)-yl radical derivatives 8.