反应详情

A solution 2-(benzyloxy)-4-fluorobenzonitrile, (9.03 g, 39.7 mmol) in ethanol (100 mL) and ethyl acetate (100 mL) was stirred with 10% palladium on carbon (1.67 g,) and concentrated hydrochloric acid (12 mL, 144 mmol) under a hydrogen atmosphere (60 psi) for four days. The catalyst was removed by filtration through Celite®, and the filtrate was concentrated. The crude product was triturated with ether and the resulting solid collected by filtration to give the title compound (5.24 g, 74% yield) as a pale orange solid. 1H NMR (500 MHz, DMSO-D6) δ ppm: 10.81 (1H, s), 8.18 (3H, s), 7.36 (1 H, t, J=7.3 Hz), 6.79 (1H, dd, J=10.8, 2.6 Hz), 6.66 (1H, dt, J=8.5, 2.3 Hz), 3.90 (2 H, d, J=5.2 Hz).

1. customThe catalyst was removed by filtration through Celite®
2. concentrationthe filtrate was concentrated
3. customThe crude product was triturated with ether
4. filtrationthe resulting solid collected by filtration