反应详情

1 g of 5-methyl-2-(4-nitrophenyl)-2,4-dihydro-3-pyrazolone, 190 mg of 1,3,5-triazine and 0.74 ml of 2-ethylaniline are heated under reflux in 50 ml of ethanol for 4 days. The solvent is evaporated off in vacuo, and the crude reaction product obtained in this way is purified by chromatography on silica gel with a solvent mixture consisting of dichloromethane and methanol mixed in the ratio of 97:3 as eluent.

1. customThe solvent is evaporated off in vacuo
2. customthe crude reaction product
3. customobtained in this way
4. customis purified by chromatography on silica gel with a solvent mixture
5. additionmixed in the ratio of 97:3 as eluent