Triethylamine → HCID 57608490, compound

Participants

Reaction Steps

3-(3-Bromophenyl)-2,2-dimethylpropan-1-amine hydrochloride (1.52 g, 5.45 mmol) was dissolved in anhydrous THF (50 mL). Et3N (1.5 mL, 10.76 mmol) was added slowly to produce a white slurry. Ethyl trifluoroacetate (2 mL, 16.8 mmol) was added and the mixture was stirred at room temp for 15.5 h. Additional ethyl trifluoroacetate (˜0.75 mL, 6.2 mmol) and triethylamine (0.75 mL, 5.4 mmol) were added and the mixture was stirred for 4 h. The reaction mixture was concentrated under reduced pressure. The product was taken up in EtOAc and the solution was washed with saturated aqueous NaHCO3 (2×) and brine, dried over Na2SO4 and concentrated under reduced pressure to give N-(3-(3-bromophenyl)-2,2-dimethylpropyl)-2,2,2-trifluoroacetamide (30) as a yellow oil. Yield (1.84 g, 58% yield for two steps): 1H NMR (400 MHz, CDCl3) δ 7.39 (ddd, J=8.0, 2.0, 0.8 Hz, 1H), 7.29 (t, J=1.6 Hz, 1H), 7.17 (t, J=7.6 Hz, 1H), 7.05 (dt, J=7.6, 1.6 Hz, 1H), 6.16 (br s, 1H), 3.24 (d, J=6.8 Hz, 2H), 2.53 (s, 2H), 0.93 (s, 6H).

Provenance & Evidence