反应详情

10% Pd/C (500 mg) was added to a solution of 1-benzylpiperidin-4-yl acetate [(11 g, 47 mmol), J. Org. Chem. 68(2), 613-616; 2003] in a mixture of ethanol and water (90:10, 110 mL), and the mixture was stirred at 60° C., under 60 psi of hydrogen gas for 18 hours. The reaction mixture was then filtered through Arbocel®, washing through with ethanol, and the filtrate was concentrated in vacuo to afford the title product in 92% yield, 7.2 g. 1H NMR (CDCl3, 400 MHz) δ: 1.60 (m, 2H), 1.81-2.18 (m, 5H), 2.78 (m, 2H), 2.95-3.18 (m, 2H), 4.82 (m, 1H); LRMS APCI+ m/z 145 [M+H]+.

1. filtrationThe reaction mixture was then filtered through Arbocel®
2. washwashing through with ethanol
3. concentrationthe filtrate was concentrated in vacuo