1-(4-甲基苯基)-1H-吡咯-2,5-二酮 、 ethyl 4-[(2Z)-2-bromo-2-[(4-chlorophenyl)hydrazinylidene]acetyl]-5-methyl-1-(4-methylphenyl)pyrazole-3-carboxylate 在
三乙胺 作用下,
以
苯 为溶剂,
反应 3.0h,
以78%的产率得到Ethyl 4-[1-(4-chlorophenyl)-5-(4-methylphenyl)-4,6-dioxo-3a,6a-dihydropyrrolo[3,4-c]pyrazole-3-carbonyl]-5-methyl-1-(4-methylphenyl)pyrazole-3-carboxylate