1: 73 percent / (CF3CO)2O, H2O2, Mo(CO)6 / trifluoroacetic acid; CH2Cl2 / 0 deg C -> room temperature 2: Al-Hg, H2O / tetrahydrofuran 3: tetrahydrofuran; methanol / 0.13 h / 0 °C View Scheme

hexacarbonyl molybdenum; dihydrogen peroxide; trifluoroacetic anhydride in dichloromethane; trifluoroacetic acid 0 deg C -> room temperature;