Oxalyl chloride → HCID 89907782, compound

Participants

Reaction Steps

A solution of oxalyl chloride (0.657 mL, 7.50 mmol) in DCM (10 mL) and of DMF (0.01 mL) were added to a suspension of 3-bromo-2-fluorobenzoic acid (1.095 g, 5 mmol) in DCM (10 mL) and the RM was stirred for at RT for 2 h. The solvent was evaporated off under reduced pressure. The residue was dissolved in DCE (10 mL), treated dropwise with a solution of 4-(trifluoromethoxy)aniline (0.744 mL, 5.50 mmol) and DIPEA (1.747 mL, 10.00 mmol) and the RM was stirred for at RT for 1 h. The RM was treated with an aq. NaHCO3 and extracted with DCM. The combined extracts were washed with water, dried over Na2SO4 and the solvent was evaporated off under reduced pressure to give the crude product which was purified by flash chromatography (Silica gel column, 100 g, n-hexane/EtOAc 2:1) to afford the title compound as beige crystals. UPLC-MS (Condition 2) tR=1.22 min, m/z=375.9/378.0 [M−H−]−.

Provenance & Evidence