ethyl (2E)-2-[(2,3-dimethylphenyl)hydrazinylidene]-3-oxobutanoate 、
2-hydrazinocarbonyl-3,5-dichlorobenzo[b]thiophene 在
溶剂黄146 作用下,
反应 3.0h,
以65%的产率得到(4E)-2-[(3,5-dichlorobenzo[b]thiophen-2-yl)carbonyl]-5-methyl-4-(2-(2,3-dimethylphenyl)hydrazinylidene)-2,4-dihydro-3H-pyrazol-3-one