81632-15-7Relevant academic research and scientific papers
Structure de derives de β-cetonitriles. II. Tautomerie hydrazone-enehydrazine; etude des configurations
Bellec, Christian,Maitte, Pierre,Deswarte, S.
, p. 441 - 448 (2007/10/02)
As part of a general investigation of β-ketonitrile derivatives, this paper deals with the hydrazone-enehydrazine tautomerism of characteristic derivatives of cyanoaldehydes and cyanoketones.The structure of the tautomer depends on the aldehydic or ketonic nature of the α-cynocarbonyl compound and on the substitution of the reacted hydrazine.Monosubstituted hydrazines lead with α-cyanoketones to hydrazones of E-configuration, while Z-enehydrazines are exclusively obtained with cyanoaldehydes.These enehydrazines are electrochemically oxidizable into azoic derivatives with which they form a reversible couple.The 1,1-disubstituted hydrazines, when reacted with aldehydes or ketones, always lead to enehydrazines.
