[CH3:1][O:2][C:3]1[CH:8]=[C:7]([N+:9]([O-])=O)[CH:6]=[CH:5][C:4]=1[N:12]1[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1>CCO.[Pd]>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([NH2:9])[CH:6]=[CH:5][C:4]=1[N:12]1[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1To a solution of 4-(2-methoxy-4-nitro-phenyl)-morpholine (1.0 g, 4.2 mmol, Step B) in EtOH (25 mL) at 20 ° C was added Pd/C (100 mg). The flask was capped with a rubber septum and H2 pressure was applied through a balloon/needle. The reaction mixture was stirred at 20° C. for 12 h, filtered through sand/Celite® and concentrated. Purification by chromatography of the crude mixture (97:3 CH2Cl2:MeOH) afforded 3-methoxy-4-morpholin-4-yl-phenylamine as a purple solid.
Wird geladen…