Bromocyclopentane → HCID 57995643, compound

Participants

Reaction Steps

Ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)acetate (0.8 g, 1.8 mmol) was dissolved in anhydrous DMF (40 mL), NaH (60% wt. in paraffin oil, 0.052 g, 2.18 mmol) was added at 0° C. The reaction mixture was stirred for 30 min at room temperature and cyclopentyl bromide (0.298 g, 1.99 mmol) was added drop wise at 0° C. The reaction mixture was stirred an additional 1 h at 0° C. and saturated NH4Cl solution (10 mL) was added. The reaction mixture was extracted with EtOAc (3×50 mL) and the combined organic phases were washed with water (3×20 mL) and brine (20 mL), and dried over MgSO4. The volatiles were removed under reduced pressure and the residue was purified by flash column chromatography to yield compound ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)-2-cyclopentylacetate (0.4 mg) as a thick liquid.

Provenance & Evidence