125179-55-7Relevant articles and documents
Chemistry of diazocarbonyl compounds. IV. Synthesis and chemical properties of triphenylphosphoranylidenhydrazones of alkyl oxocarboxylates
Zalesov,Vyaznikova,Andreichikov
, p. 705 - 709 (2007/10/03)
Alkyl 3-diazo-2-oxopropanoates react with triphenylphosphine to form corresponding triphenylphosphoranylidenehydrazones. The latter form symmetrical azines with aromatic aldehydes. Ethyl (Z)-5-aryl-5-hydroxy-2-diazo-3-oxo-4-pentenoates under the action of