反应详情

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.

1. temperatureat reflux overnight
2. concentrationThe final mixture was concentrated
3. customdirectly purified by flash chromatography over silica gel (eluting hexane to DCM)