反应详情

A mixture of (2,6-difluoro-4-nitrophenyl)trimethylsilane (3.5 g, 15.13 mmol) and 10% palladium-carbon (350 mg, 0.16 mmol, 50% wet) in MeOH (70 mL) was stirred at room temperature for 5 hr under hydrogen atmosphere (1 atm). The catalyst was removed by filtration, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent; ethyl acetate/hexane) to give 3,5-difluoro-4-(trimethylsilyl)aniline (2.50 g, 12.42 mmol, 82%) as a pale-yellow oil.

1. customThe catalyst was removed by filtration
2. concentrationthe filtrate was concentrated under reduced pressure
3. customThe obtained residue was purified by silica gel column chromatography (solvent; ethyl acetate/hexane)