反应详情

温度

108 °C

To a solution of 1-methyl-1H-pyrazol-5-amine (291 mg, 3.00 mmol) in acetic acid (3 mL) is added nitromalonaldehyde sodium salt (474 mg, 3.00 mmol) and reaction mixture is heated to 108° C. for 1 h. The reaction mixture is allowed to cool to room temperature and is stirred for 16 h. The solvent is evaporated under reduced pressure and the residue is purified by flash column chromatography using a gradient of 0-100% ethyl acetate in heptane to afford the title compound as a solid (100 mg, 19%).

1. temperatureto cool to room temperature
2. customThe solvent is evaporated under reduced pressure
3. customthe residue is purified by flash column chromatography