Hydrochloric Acid → HCID 90010002, compound

Participants

Reaction Steps

To a stirring solution of (Z)-tert-butyl 2-((4-(dimethylcarbarnoyl)-phenoxy)methyl)-3-fluoroallylcarbamate (520.0 mg, 1.48 mmol) in CH2Cl2 (8.0 mL) at room temperature was added trifluoroacetic acid (2.0 mL). The resulting mixture was stirred at room temperature for 30 min. All volatiles were removed in vacuo and the residue was co-evaporated with CH2Cl2 (2×20 mL) to remove trifluoroacetic acid. The resulting oil was taken up in ethyl acetate (3.0 mL) and then ethereal HCl (2.0 M in diethyl ether; 1.0 mL, 2.0 mmol) was added. The precipitate formed was isolated and dried under reduced pressure to afford (Z)-4-(2-(aminomethyl)-3-fluoroallyloxy)-N,N-dimethylbenzamide hydrochloride (301 mg, 71%) as a pale yellow solid; m.p.=135-137° C.; 1H-NMR (300 MHz; MeOD) δ ppm: 3.06 (3H, br s), 3.10 (3H, br s), 3.71 (2H, d, J 3.0 Hz), 4.88 (2H, dd, J 2.8, 0.8 Hz), 7.11 (2H, d, J 8.9 Hz), 7.13 (1H, d, J 80.8 Hz), 7.45 (2H, d, J 8.9 Hz).

Provenance & Evidence