228716-35-6Relevant articles and documents
Aspects of the chemistry of functionalized 1-phenylpyrazoles available from 1,2-diaza-1,3-butadienes and 2-phenylazo-1,3-dicarbonyl compounds
Attanasi, Orazio A.,Filippone, Paolino,Fiorucci, Chiara,Mantellini, Fabio
, p. 3891 - 3894 (2007/10/03)
In the presence of sodium hydride, treatment of 1,2-diaza-1,3-butadienes with 2-phenylazo-1,3-dicarbonyl compounds gave rise to functionalized 1- phenylpyrazole derivatives in good to excellent yields. Pyrazolo[3,4-d]1,6- dihydropyridazin-6(2H)-one derivatives were obtained by the reaction of 5- methyl-4-methoxycarbonyl-3-acetyl-1-phenylpyrazole with different hydrazines.