Benzoyl chloride → HCID 21842644, compound

Participants

Reaction Conditions

Reaction Steps

N,N-Diisopropylethylamine (0.352 mL, 261 mg, 2.02 mmol) and 5-(methylamino)-3-phenylpentan-1-ol (300 mg, 1.68 mmol) from Example 180, Step B, were dissolved in 4.0 mL of dichloromethane. The solution was cooled to 0° C., benzoyl chloride (0.205 mL, 248 mg, 1.77 mmol) was added dropwise, and the mixture was stirred for an additional 30 min. The mixture was then partitioned between 15 mL of dichloromethane and 15 mL of saturated aqueous sodium bicarbonate solution. The aqueous layer was extracted with 2×15 mL of dichloromethane. The combined organic extracts were washed with 20 mL of brine, dried over sodium sulfate, and evaporated. The crude product was purified by flash column chromatography on silica gel, eluting with 10% ethyl acetate in dichloromethane, to give 467 mg of the title compound. 1NMR (400 MHz, CD3OD) was complicated by the presence of a mixture of rotamers: δ 7.45-7.06 (m, 9H), 6.97 (d, 1H, J=8 Hz), 3.53-3.23 (m, 2H), 3.17-3.00 (m, 2H), 3.02 and 2.85 (two singlets, 3H), 2.88-2.78 and 2.57-2.49 (two multiplets, 1H), 2.07-1.64 (m, 4H). Mass spectrum (ESI): m/z=298 (M+1).

Provenance & Evidence