Potassium Carbonate → 4-methoxy-2-[4-(trifluoromethyl)phenyl]-5-[[3-(trifluoromethyl)-1H-pyrazol-1-yl]methyl]-2H-1,2,3-triazole

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Reaction Conditions

Reaction Steps

To a solution of 4-(bromomethyl)-5-methoxy-2-[4-(trifluoromethyl)phenyl]-2H-1,2,3-triazole (i.e. the product of Example 1, Step D) (0.25 g, 66 weight %, 0.5 mmol) in N,N-dimethylformamide (2 mL total), was added 3-(trifluoromethyl)pyrazole (0.082 g, 0.6 mmol) and anhydrous potassium carbonate (0.21 g, 1.5 mmol). The mixture was heated to 55° C. and stirred for 75 min. The reaction mixture was cooled to 23° C., diluted with water (20 mL) and extracted with ethyl acetate (15 mL). The organic layer was washed with water (10 mL) and saturated aqueous sodium chloride solution (10 mL), dried (MgSO4) and concentrated under reduced pressure. The crude residue was purified by chromatography on silica gel eluting with 0 to 40% ethyl acetate in hexanes to afford the title compound (0.098 g) as a colorless oil.

Provenance & Evidence