Nm. Igidov et al., Acylpyruvamides and acylpyruvoylhydrazines - 7. Reactions of aroylpyruvamides with hydrazine and phenylhydrazine, RUSS CHEM B, 48(7), 1999, pp. 1383-1385
Substituted aroylpyruvamides react with hydrazine and phenylhydrazine to gi
ve 5-aryl-5-hydroxy-2-pyrazoline-3-carboxamides rather than 5-arylpyrazole-
3-carboxamides as suggested before. The structures of the compounds obtaine
d are discussed.