反应详情

3-(1-(Hydroxyimino)ethyl)benzoic acid (2.28 g, 12.73 mmol) and palladium on carbon (10 wt. %, 1.355 g, 12.73 mmol) in ethanol (170 mL) and 12M aqueous HCl (2.1 mL, 24.2 mmol) were stirred under an atmosphere of H2 at 40 psi for 6 hours. The reaction mixture was purged with nitrogen for 30 minutes then filtered through a pad of Celite washing with methanol. The filtrate was concentrated in vacuo and the residue triturated from Et2O to give the sub-title compound as a white (2.4 g, 94% Yield). 1H NMR (400 MHz, CD3OD) δ 1.66 (d, 3H), 4.55 (q, 1H), 7.58 (t, 1H), 7.70 (d, 1H), 8.07 (d, 1H) and 8.16 (s, 1H); MS (ES+) 166.5.

1. customThe reaction mixture was purged with nitrogen for 30 minutes
2. filtrationthen filtered through a pad of Celite
3. washwashing with methanol
4. concentrationThe filtrate was concentrated in vacuo
5. customthe residue triturated from Et2O