Tetrahedron

α-(1-phenylhydrazino)-alkanone phenylhydrazones: The reaction with carbonyl compounds

JG Schantl, P Karpellus, M Prean

Index: Schantl, Joachim G.; Karpellus, Peter; Prean, Michael Tetrahedron, 1987 , vol. 43, # 24 p. 5807 - 5814

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Citation Number: 10

Abstract

The unsymmetrically disubstituted hydrazines 1 were condensed with carbonyl compounds. Some of the expected condensation products were isolated, but some were formed as unstable intermediates which underwent 1, 4-elimination: The phenylhydrazone of the carbonyl compound used was obtained, together with the corresponding phenylazo-alkene 11 or alternatively, the 1, 4-addition product of a different protic nucleophile to 11.