Benzoyl chloride → HCID 136148557, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5j (0.048 g, 0.11 mmol) and 4-dimethylaminopyridine (0.0014 g, 0.011 mmol) in DMF was added triethylamine (18 μL, 0.125 mmol) followed by benzoyl chloride (16 μL, 0.137 mmol). The reaction mixture was stirred 4 h at 80° C. and cooled to room temperature. The reaction mixture was treated with sat NaHCO3 (1 mL) and extracted two times with EtOAc (3 mL). The combined organic layer was washed with brine (1 mL), dried over MgSO4, and concentrated in vacuo. The crude mixture was purified by flash column chromatography using silica gel (0-40% EtOAc/hexanes) to give 5k (0.030 g, 50%) as a yellow solid. 1H NMR (400 MHz, D6-DMSO) δ 10.63 (br s), 8.45 (d, J=2.4 Hz, 1H), 8.09 (dd, J=8.8, 2 Hz, 1 H), 8.97 (d, J=7.2 Hz, 2 H), 7.67 (d, J=9.2 Hz, 1 H), 7.60 (d, J=7.2 Hz, 1 H), 7.54 (t, J=7.2 Hz, 2 H), 4.13 (d, J=6.8 Hz, 2 H), 3.25 (m, 1 H), 1.63 (m, 3 H), 1.22 (d, J=6.8 Hz, 6 H), 0.93 (d, J=6.4 Hz, 6 H). LC-MS(ESI+) m/e 524 [M+H]+.

Provenance & Evidence