Hydrochloric Acid → HCID 66616701, compound

Participants

Reaction Steps

To a solution of tert-butyl 3-(aminomethyl)benzylcarbamate (0.80 g, 3.39 mmol) in methanol (0.11 g, 3.39 mmol) was added 4-(trifluoromethyl)benzaldehyde (0.45 mL, 3.39 mmol) under nitrogen. The reaction mixture was stirred for 10 min, followed by the addition of sodium triacetoxyborohydride (1.08 g, 5.08 mmol). The resulting mixture was stirred at rt. for 20 h. To the reaction mixture was added 1 N HCl solution and the mixture was concentrated. The residue was extracted with ethyl acetate and saturated sodium bicarbonate solution. The organic layer was washed with brine, dried over MgSO4, and concentrated to give an oil. The sample was purified by silica gel flash chromatography. Elution with dichloromethane to 30% of ethyl acetate in dichloromethane gave a colorless oil (0.64 g, 47%). 1H NMR (CDCl3): δ 7.61 (d, J=8.4 Hz, 2H), 7.51 (d, J=8.0 Hz, 2H), 7.33-7.22 (m, 4H), 4.34 (m, 2H), 3.89 (s, 2H), 3.82 (s, 2H), 1.48 (s, 9H); MS (ESI): (M+H)+=395.4.

Provenance & Evidence