Trifluoroacetic acid → 2-[4-(3-Chloro-4-trifluoromethyl-phenoxy)-phenyl]-ethylamine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Entire reaction was performed under argon atmosphere using syringe septa technique. {2-[4-(3-chloro-4-trifluoromethyl-phenoxy)-phenyl]-ethyl}-carbamic acid tert-butyl ester (3.703 mmol, 1 eq) was dissolved in dichloromethane (20 ml) and stirred at 0° C. for 5 min. TFA (18.517 mmol, 5 eq) was added and stirring was continued overnight. Reaction mixture was diluted with 10 ml NaHCO3 (sat.) and extraction with DCM (3×20 ml) followed. Organic layers were combined and evaporated in vacuo to give 2-[4-(3-chloro-4-trifluoromethyl-phenoxy)-phenyl]-ethylamine (2.661 mmol, yield=72%, purity=99%). [M+H]+=316.21 1H NMR (300 MHz, CDCl3) δ/ppm 2.68-2.82 (m, 2H), 2.91-3.05 (m, 2H), 6.81-6.91 (m, 1H), 6.93-7.07 (m, 4H), 7.16-7.23 (m, 1H), 7.52-7.63 (m, 1H)

Herkunft & Nachweise