反应详情

To (4-methoxyphenyl)-hydrazine hydrochloride (0.083 g, 0.48 mmol) in ethanol (5 ml) add sodium bicarbonate (0.067 g, 0.80 mmol) after which stir the mixture for 10 min. Add 1-[1-phenyl-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl]-butane-1,3-dione (0.103 g, 0.40 mmol. The mixture was heated at reflux for 1.5 hours after which it was evaporated to dryness. Chromatography on silica gel, eluting with 50 to 100% ethyl acetate/heptane provided 0.071 g of the title compound.

1. temperatureThe mixture was heated
2. temperatureat reflux for 1.5 hours after which it
3. customwas evaporated to dryness
4. washChromatography on silica gel, eluting with 50 to 100% ethyl acetate/heptane