Hydrazinophosphorus Compounds. 5. Reaction of 1,3-Dicarbonyl Compounds with Diarylphosphoro- and Diphenylthiophosphinohydrazides

Article abstract of DOI:10.1021/je00025a037

1,3-Dicarbonyl compounds (III) reacted with the phosphorus hydrazides to give the corresponding hydrazones.When the hydrazones of ethylacetoacetate were heated at their melting points, they were converted to the corresponding pyrazolin-5-ones.The spectral