1: 30 percent / Ph3PBr2 / 340 °C 2: 1) Mg, I2; 2) sulfur; 3) LiAlH4 / 1) THF, reflux, 3 h; 2) reflux, 45 min; 3) reflux, 30 min; 4) MeOH, reflux, 30 min View Scheme

lithium aluminium tetrahydride; iodine; sulfur; magnesium 1) THF, reflux, 3 h; 2) reflux, 45 min; 3) reflux, 30 min; 4) MeOH, reflux, 30 min; Yield given. Multistep reaction;

dihydrogen peroxide; β-cyclodextrin in water T=25°C; 1 h; other oxidation reagents (m-ClPBA, t-BuOOH, PhI(OAc)2) , other chiral induction (α-cyclodextrin); investigation of the enantiomeric excess of the formed sulfoxide;

potassium permanganate; magnesium sulfate in tert-butyl alcohol 4 h; Ambient temperature;