Carbon tetrabromide → HCID 23401710, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-chloro-N-[5-fluoro-2-flurophenyl]-N-[(R)-1-methyl-4-hydroxybutyl]-benzenesulfonamide (317 mg, 0.813 mmol) in acetonitrile (4 mL) was added triphenylphosphine (425 mg, 1.62 mmol) and carbon tetrabromide (537 mg, 1.62 mmol) at 0° C. The resulting mixture was allowed to stir at 22° C. for 12 h followed by the addition of 25 mL of sat. ammonium chloride. The product was extracted with ether (2×25 mL), dried over Na2SO4, filtered, and concentrated under reduced pressure. Silica gel chromatography (1:4 ethyl acetate:hexanes) of the concentrate afforded 323 mg of 4-chloro-N-[5-fluoro-2-flurophenyl]-N-[(R)-1-methyl-4-bromobutyl]benzenesulfonamide as a yellow oil in 86% yield.

Provenance & Evidence