反应详情

Stir an admixture of 2 g of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde, 0.92 g of 2-hydrazinopyridine, 50 ml of ethanol and 2 drops of glacial acetic acid for 36 hours at room temperature. Cool the admixture and then form a precipitate with 50 ml of water to obtain a 95% yield of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxaldehyde-(2-pyridyl)hydrazone [m.p. 228° to 231° C (with decomposition) from dimethylformamide/water].

1. temperatureCool the admixture