反应详情

Catalyst (10% palladium on carbon, 140 mg) was added to a solution of phenyl 5-ethylpyrido[3,4-b]pyrazine-6(5H)-carboxylate (238 mg, 0.85 mmol) in ethyl acetate (6.0 mL), and the resultant mixture was stirred under hydrogen (1 atm) for 7.5 h. Filtration through Celite® and evaporation of the solvent gave the crude product. Purification by flash chromatography (silica gel, 6-15% ethyl acetate/dichloromethane) gave the title compound as a colorless oil. LC/MS 284 (M+1).

1. filtrationFiltration
2. customthrough Celite® and evaporation of the solvent
3. customgave the crude product
4. customPurification by flash chromatography (silica gel, 6-15% ethyl acetate/dichloromethane)