Addition products of hydrazine derivatives to azo-alkenes - III. α-phenylhydrazino-phenylhydrazones |
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Authors: | Joachim G Schantl Peter Karpellus Michael Prean |
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Institution: | Institut für Organische und Pharmazeutische Chemie, Universität Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria. |
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Abstract: | The addition of phenylhydrazine to phenylazo-alkenes yields α-(1-phenylhydrazino)-phenylhydrazones . The reaction of phenylhydrazine with α-halogenated carbonyl compounds affords either or the isomeric α-(2-phenylhydrazino)-phenylhydrazones . Structures and (>N-NH2 and-NH-NH- groups, respectively) can be differentiated by 1H NMR in DMSO-D6 solution. Possible pathways of the reactions leading to either or are discussed. Compounds are found to be precursors of phenylosazones . |
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