反应详情

A round-bottom flask containing tert-butyl methyl(3-nitrophenyl)carbamate (19) (8.8 g, 34.9 mmol), 10% palladium on charcoal (880 mg), and THF-MeOH (80 mL/80 mL) was evacuated and flushed with hydrogen three times. The mixture was stirred vigorously overnight under an atmosphere of hydrogen. The catalyst was removed by filtration through a pad of Celite, and the filtrate evaporated to afford tert-butyl 3-aminophenyl(methyl)carbamate (20) 7 g as yellow solid (yield 91%). LC-MS (ESI): m/z (M+1) 223.

1. customwas evacuated
2. customflushed with hydrogen three times
3. customThe catalyst was removed by filtration through a pad of Celite
4. customthe filtrate evaporated