反应详情

Quinolone (b) (5.4 g, 21 mmol) was dissolved in a mixture of dioxin (300 ml) and 2M aqueous sodium hydroxide solution (21 ml, 42 mmol) then hydrogenated over 10% palladium on charcoal (2.3 g) for 18 hours. The mixture was filtered, neutralised (5M hydrochloric acid) and concentrated when crystallisation commenced. Filtration, washing with water and drying in vacuo afforded a solid (2.5 g, 70%).

1. filtrationThe mixture was filtered
2. concentrationconcentrated
3. customwhen crystallisation
4. filtrationFiltration
5. washwashing with water
6. customdrying in vacuo