Perfluorooctanesulfonyl fluoride → HCID 66704853, compound

Participants

Reaction Conditions

Reaction Steps

Process B: (3S,4R)-3-Bromomethyl-1-tert-butoxycarbonyl-4-hydroxypyrrolidine (561 mg) was dissolved in toluene (20 mL). To this solution, 1,8-diazabicyclo[5.4.0]undec-7-ene (0.50 mL) was added and perfluoro-1-octanesulfonylfluoride (0.93 mL) was then added dropwise while the mixture was chilled in an ice water bath. After stirred at 2° C. for 1 hour, the reaction mixture was poured on a silica gel pad and was eluted with ethyl acetate (100 mL). The eluate was concentrated under reduced pressure and the resulting residue was purified by silica gel column chromatography (eluant: hexane: ethyl acetate=2:1) to give (3S,4S)-3-bromomethyl-1-tert-butoxycarbonyl-4-fluoropyrrolidine as a yellow oil (447 mg).

Provenance & Evidence