Trifluoroacetic acid → HCID 59717864, compound

Participants

Reaction Steps

Add trifluoroacetic acid (10 mL) dropwise to a solution of {2-[4-(4-acetylamino-phenoxy)-phenyl]-ethyl}-carbamic acid tert-butyl ester (3.7 g, 10 mmol) in dichloromethane (50 mL) at 0° C. Warm to room temperature and stir overnight. Concentrate on a rotary evaporator, dissolve residue in methanol then apply to a strong cation exchange column (Varian, 0.79 meq/g), and wash with methanol. Elute the product with 2M ammonia in methanol then concentrate on a rotary evaporator to yield N-{4-[4-(2-amino-ethyl)-phenoxy]-phenyl}-acetamide (2.3 g): 1H NMR (DMSO-D6, 300.00 MHz): 9.97 (s, 1H), 7.58 (d, 2H, J=8.8 Hz), 7.19 (d, 2H, J=7.9 Hz), 6.92 (dd, 4H, J=21.3, 8.1 Hz), 3.60-3.05 (m, 3H), 2.73-2.55 (m, 3H), 2.04 (s, 3H).

Provenance & Evidence