Aluminium lithium hydride → 3-(3',5'-Difluorobiphenyl-4-yl)propanoic acid

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of lithium aluminum hydride (0.2 g) in tetrahydrofuran (15 mL), the compound obtained from step c above (0.77 g) in tetrahydrofuran (50 mL) was added at 0° C. The reaction mixture was stirred at 0° C. for 3 hours. The reaction mixture was quenched carefully with saturated ammonium chloride solution, filtered through a celite pad, and washed with ethyl acetate. The organic layers were separated, washed with brine, and dried over anhydrous sodium sulfate, and solvents were evaporated under reduced pressure. The crude product was purified by silica gel flash column chromatography using 20% to 30% ethyl acetate in hexane to get the title compound as a white crystalline solid (0.70 g).

Provenance & Evidence