1: With oxalyl dichloride; dimethyl sulfoxide in dichloromethane T=-78°C; Swern oxidation; Inert atmosphere; 2: With triethylamine in dichloromethane T=20°C; Swern oxidation; CoolingInert atmosphere;

1: With MnIII(L-5-t-Bu)(Cl); 1-butyl-2,6-dimethyl-pyridinium; bromide in dichloromethane; water T=20°C; 2: With [bis(acetoxy)iodo]benzene in dichloromethane; water T=20°C; 0.1 h; optical yield given as percent ee;