反应详情

1-{2-[2-fluoro-5-(methyloxy)-4-nitrophenyl]ethyl}piperidine (0.81 g, 2.87 mmol) was placed in a 100 mL high pressure vessel and dissolved in 30 mL of EtOAc. 5 wt % Platinum(sulfided)/carbon (0.559 g, 0.143 mmol) was added followed quickly by a rubber septum. The flask was evacuated and filled with N2 six times to remove oxygen. The vessel was then pressurized with H2 (50 psi). The solution stirred overnight. The next morning the vessel was evacuated and filled with N2 six times to remove H2. The solution was filtered through celite and evaporated to afford the title compound of step D (0.586 g, 2.32 mmol, 81%). 1H NMR (400 MHz, CD3OD) δ ppm 6.72 (d, J=6.96 Hz, 1H), 6.46 (d, J=11.35 Hz, 1H), 3.81 (s, 3H), 3.21-3.27 (m, 2H), 3.13-3.21 (m, 4H), 2.93-2.99 (m, 2H), 1.82-1.89 (m, 4H), 1.62-1.71 (m, 2H).

1. customThe flask was evacuated
2. additionfilled with N2 six times
3. customto remove oxygen
4. customThe next morning the vessel was evacuated
5. additionfilled with N2 six times
6. customto remove H2
7. filtrationThe solution was filtered through celite
8. customevaporated