4-Chlorobenzenesulfonyl chloride → 2,2,2-Trifluoroethane-1-sulfonamide

Participants

Reaction Steps

b)To a solution of O-protected trifluoroethyl piperidine (1.13 g, 3.6 mmol) in DCE (15 mL) was added triethylamine (0.6 mL, 4.3 mmol) then 4-chlorobenzenesulfonyl chloride (1.13 g, 5.4 mmol) and the reaction was heated at reflux overnight. The final mixture was concentrated and directly purified by flash chromatography over silica gel (eluting hexane to DCM) to afford 0.67 g (38%) of O-protected trifluoroethyl sulfonamide.

Provenance & Evidence