反应详情

温度

0 °C

{2-[4-(5-Trifluoromethyl-pyridin-2-yloxy)-phenyl]-ethyl}-carbamic acid tert-butyl ester (2200 mg, 1.135 mmol, 1 eq) was dissolved in dichloromethane (4 ml) and stirred at 0° C. for 5 min. TFA (3084 ml, 40.273 mmol, 7 eq) was added and stirring was continued at rt overnight. Reaction mixture was diluted with NaHCO3 (sat.) and extracted with DCM (3×). Organic layers were combined and evaporated to give 2-[4-(5-trifluoromethyl-pyridin-2-yloxy)-phenyl]-ethylamine as white solid (1.6 g, yield=99%, purity 99%). [M+H]+=283.26 1H NMR (DMSO-d6, 300 MHz): 2.83-2.91 (m, 2H), 3.03-3.13 (m, 2H), 7.13-7.19 (d, 2H), 7.20-7.24 (d, 1H), 7.30-7.36 (d, 2H), 7.86 (bs, 2H), 8.19-8.25 (m, 1H), 8.53 (s, 1H)

1. stirringstirring
2. waitwas continued at rt overnight
3. customReaction mixture
4. extractionextracted with DCM (3×)
5. customevaporated