Potassium Carbonate → 5,6-Dichloro-2-(2,2,2-trifluoro-ethyl)-1-(3-trifluoromethoxy-benzyl)-1H-benzoimidazole

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Reaction Steps

To 5,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzimidazole (495 mg) in DMF (5 mL) was added potassium carbonate powder (763 mg) and 3-(trifluoromethoxy)benzyl bromide (1.41 g). The resulting mixture was stirred at room temperature overnight. The reaction mixture was quenched with water, extracted with EtOAc, and dried over Na2SO4. The crude product was purified by silica gel chromatography (10%-40% EtOAc/hexanes) to yield the title compound as a brown solid.

Provenance & Evidence