反应详情

Dissolve 4-(2-benzyloxy-ethyl)-morpholin-3-one (1.7 g, 7.23 mmol) in ethanol (25 mL) and add 5% Pd/C (0.30 g). Hydrogenate at 60 psi overnight, filter the black mixture through Celite®, and wash the Celite® with additional ethanol (approximately 10 mL). Concentrate the filtrate to give the title compound as an oil (0.7 g, 70%). MS (ES+) 146.3 (M+1)+. 1H NMR (400 MHz, CDCl3): δ 4.11 (s, 2H), 3.83 (t, 2H, J=5.1 Hz), 3.73 (t, 2H, J=5.3 Hz), 3.49 (t, 2H, J=5.3 Hz), 3.43 (t, 2H, J=5.1 Hz), 3.12 (s, 1H).

1. filtrationHydrogenate at 60 psi overnight, filter the black mixture through Celite®
2. washwash the Celite® with additional ethanol (approximately 10 mL)
3. concentrationConcentrate the filtrate