3,4-Dichlorophenol → 4-Methylphenyl 5-chloro-4-(3,4-dichlorophenoxy)-2-fluorobenzoate

Participants

Reaction Steps

3,4-Dichlorophenol (110 mg, 0.67 mmol) and potassium carbonate (20 mg, 1.42 mmol) were stirred in dimethylsulfoxide (20 mL). After 5 minutes, 4-methylphenyl 5-chloro-2,4-difluorobenzoate (Preparation 10, 200 mg, 0.71 mmol) was added and the reaction mixture was stirred at room temperature overnight. The reaction mixture was diluted with ethyl acetate and washed with a 1M aqueous solution of sodium hydroxide. The aqueous phase was extracted with ethyl acetate. The combined organic phase was dried over magnesium sulphate, filtered and concentrated in vacuo to give a white solid. The solid was purified by silica gel column chromatography (50% ethyl acetate in heptane elution) to afford the title compound as a white solid (286 mg, 95%).

Provenance & Evidence