Trifluoroacetic acid → Ethyl 2-[4-(aminomethyl)phenyl]propanoate
反応式
FC(F)(F)C(O)=O.C(OC([NH:15][CH2:16][C:17]1[CH:22]=[CH:21][C:20]([CH:23]([CH3:29])[C:24]([O:26][CH2:27][CH3:28])=[O:25])=[CH:19][CH:18]=1)=O)(C)(C)C>ClCCl>[NH2:15][CH2:16][C:17]1[CH:18]=[CH:19][C:20]([CH:23]([CH3:29])[C:24]([O:26][CH2:27][CH3:28])=[O:25])=[CH:21][CH:22]=1参加物
4
実験手順
Trifluoroacetic acid (6 mL) was added to a solution of ethyl 2-(4-((tert-butoxycarbonylamino)methyl)phenyl)propanoate (6.0 g, 19.54 mmol) in dichloromethane (30 mL) at 0° C. and stirred for 4 h at room temperature. The volatiles were evaporated under reduced pressure, basified with saturated NaHCO3 and extracted with ethyl acetate (3×50 mL). Combined organic layers washed with water (100 mL), brine solution (50 mL), dried over sodium sulfate and concentrated to give ethyl 2-(4-(aminomethyl)phenyl)propanoate (3.5 g, 86%) as colorless liquid.