反应详情

A reaction mixture of 3-cyclopropyl-2-pyrazolin-5-one (790 mg, 6.3 mmol), 4,5-dimethylpyrrole-2-carboxaldehyde (800 mg, 6.5 mmol), and piperidine 100 mg, in ethanol 50 mL was stirred at 90° C. for 3.5 h. The solvent was removed under reduced pressure. The solid residue was purified by flash column chromatography using (3:7) ethyl acetate:hexane as the mobile phase, then further purified by recrystallization from toluene.

1. customThe solvent was removed under reduced pressure
2. customThe solid residue was purified by flash column chromatography
3. customhexane as the mobile phase, then further purified by recrystallization from toluene