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.
在氢化
钠存在下,用2-苯基偶氮-1,3-二羰基化合物处理1,2-二氮杂-
1,3-丁二烯产生官能化的
1-苯基吡唑衍
生物,收率良好至优异。通过使5-甲基-4-甲氧基羰基-3-乙酰基-
1-苯基吡唑与不同的
肼反应获得
吡唑并[3,4- d ] 1,6-二氢
哒嗪-6(2H)-一衍
生物。