m-Chloroperbenzoic acid → HCID 12714621, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 0.91 g (5.5 mmol) of 2-(phenylthio)-2-propenyl alcohol in 60 mL of CH2Cl2 at -78° C. was added 1.11 g (5.5 mmol) of 85% m-chloroperbenzoic acid. The reaction mixture was stirred for 1 hour at -78° C. The cooling bath was removed and the mixture allowed to warm to room temperature. The mixture was filtered, and then extracted with three 50-mL portions of saturated NaHCO3. The organic layer was dried over MgSO4, filtered, and the solvent removed in vacuo from a water bath at 45° C. The residue was flash chromatographed on silica gel (230-400 mesh, 4×12-cm packed column) with 80% EtOAc/Skelly B as eluant, to give 0.57 g (57%) of the sulfoxide as a colorless oil; IR (neat) cm1 3360, 1440, 1030, 990, 930, 750, 690; 1H NMR (CDCl3) δ4.00 (s, 1H, allylic), 4.15 (s, 1H, allylic), 4.40 (bs, 1H, OH), 5.90 (t, J=1 Hz, 1H, vinyl), 6.05 (s, 1H, vinyl), 7.35-7.80 (m, 5H, phenyl).

Provenance & Evidence