1: 1.) BF3*SMe2, 2.) NaOH, H2O2 / 1.) hexane, 1 h, 2.) EtOH, H2O, reflux, 1 h 2: CH3COONa, PCC / CH2Cl2 / 1.) 0 deg C, 10 min, 2.) RT; 45 min 3: 1.) THF, 0 deg C, 15 min, 2.) THF, RT. View Scheme

1: CH3COONa, PCC / CH2Cl2 / 1.) 0 deg C, 10 min, 2.) RT; 45 min 2: 1.) THF, 0 deg C, 15 min, 2.) THF, RT. View Scheme

1.) THF, 0 deg C, 15 min, 2.) THF, RT.; Yield given. Multistep reaction;

BSA; molybdenum hexacarbonyl in toluene 4 h; Heating;