Ammonium Chloride → 1-(2'-Fluoro-5'-methoxy-4-((4-methoxybenzyl)oxy)biphenyl-2-yl)-2,2-dimethylpropan-1-one

Participants

Reaction Conditions

Reaction Steps

Under a nitrogen atmosphere, to a solution of ethyl 2′-fluoro-5′-methoxy-4-((4-methoxybenzyl)oxy)biphenyl-2-carboxylate (524 mg) in THF (10 mL) was added a solution (1.6 M, 1.6 mL) of tert-butyllithium in pentane at −78° C., and the mixture was stirred at −78° C. for 30 min. To the reaction mixture was added saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (268 mg) as a colorless oil.

Provenance & Evidence