Water → HCID 118113314, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of methyl 3-hydroxy-4-(trifluoromethyl)benzoate (see WO 2007/129745) (2.00 g), sodium chlorodifluoroacetate (2.08 g) and potassium carbonate (2.51 g) in N,N-dimethylformamide (30.0 mL) was stirred at 100° C. for 6 hours. After cooling the reaction mixture to room temperature, water was added to it and two extractions were conducted with ethyl acetate. The combined organic layers were washed with water three times and thereafter dried over anhydrous magnesium sulfate. After removing the desiccant by filtration, the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=98:2-85:15) to give methyl 3-(difluoromethoxy)-4-(trifluoromethyl)benzoate as a colorless oil (1.96 g).

Provenance & Evidence