Hydrogen chloride-ethyl acetate → 1098106-78-5

Participants

Reaction Steps

tert-Butyl 3-(3-bromophenyl)-2,2-dimethylpropylcarbamate (29) (3.2 g, 9.35 mmol) was dissolved in EtOAc (55 mL), and a solution of HCl-EtOAc (˜4.2 M, 20 mL, 84 mmol) was added. The reaction was vented with a needle and stirred at room temperature for 2.5 h. The reaction was then diluted with hexanes and the white solid was collected on a fitted glass funnel. The mother liquor was concentrated under reduced pressure, suspended in ˜5-10% EtOAc-hexanes, and the white solid was collected and combined with the first batch. The solid was dried in a vacuum oven at room temperature overnight to give pure 3-(3-bromophenyl)-2,2-dimethylpropan-1-amine hydrochloride as a white solid. Yield (1.52 g): 1H NMR (400 MHz, CDCl3) δ 8.53 (br s, 2H), 7.37 (dq, J=1.2 and 8.0 Hz, 1H), 7.31 (t, J=1.6 Hz, 1H), 7.13 (t, J=7.7 Hz, 1H), 7.08 (dt, J=8.0, 1.6 Hz, 1H), 2.83-2.84 (m, 2H), 2.67 (s, 2H), 1.09 (s, 6H).

Provenance & Evidence