反应详情

To a solution of 1-(2-fluoro-4-hydroxy-5-nitro-phenyl)-ethanone (3 g, 15.7 mmol) in EtOH (30 mL) and THF (6 mL) was added Pd/C (10%, 1.5 g, 1.4 mmol) and the reaction mixture was stirred at ambient temperature for 2 h. The reaction mixture was filtered and the filtrate was evaporated in vacuo to give 1-(5-amino-2-fluoro-4-hydroxy-phenyl)-ethanone as a black solid (2.5 g, crude), which was used in the next step directly without further purification. 1H-NMR (DMSO-d6, 400 MHz): δ 7.01 (d, J=8.0 Hz, 1H), 6.48 (d, J=12.4 Hz, 1H), 2.39 (d, J=4.8 Hz, 3H).

1. filtrationThe reaction mixture was filtered
2. customthe filtrate was evaporated in vacuo