Potassium Carbonate → HCID 58042474, compound

Participants

Reaction Steps

tert-Butyl 2,5-dichloro-4-fluorobenzoate (Preparation 218, 251 mg, 0.61 mmol) was added to a solution of 5-chloro-6-cyclopropylpyridin-3-ol (Preparation 69, 161 mg, 0.61 mmol) and potassium carbonate (393 mg, 1.82 mmol) in dimethylsulfoxide (5 mL). The reaction mixture was stirred at room temperature for 18 hours then diluted with sodium hydroxide (1M, 5 mL) and extracted with ethyl acetate (3×15 mL). The combined organic layers were dried (MgSO4), filtered and concentrated in vacuo. The crude compound was purified by silica gel column chromatography eluting with heptane:dichloromethane (from 95:5 to 60:40) to afford the title compound as a colourless oil (116 mg, 30%).

Provenance & Evidence