反应详情

A yellow solution of the 5-ethyl-6-methyl-3-nitro-2(1H)-pyridinone (10 g, 55 mmol) in a mixture of methanol and tetrahydrofuran (100 mL, 1:1 v/v) was reduced catalytically in the presence of 7% palladium on charcoal (0.7 g) under and atmosphere of hydrogen (50 psi) at room temperature over a period of 3.5 hours. The resultant mixture was filtered through a small pad of Celite. The filtrate was concentrated under reduced pressure (15 torr) to provide the corresponding aminopyridone.

1. customat room temperature
2. customof 3.5 hours
3. filtrationThe resultant mixture was filtered through a small pad of Celite
4. concentrationThe filtrate was concentrated under reduced pressure (15 torr)