1: 1.) BH3*THF, 2.) 30percent H2O2, aq. NaOAc / 1.) THF, 20 deg C, 16 h, 2.) 50 deg C, 15 min 2: 98 percent Chromat. / NaHCO3 / methanol; H2O / Heating View Scheme

1: 78 percent / 4-methylmorpholine 4-oxide dihydrate, osmium tetroxide / acetone; 2-methyl-propan-2-ol / 72 h / Ambient temperature 2: 75 percent / NaHCO3 / H2O; methanol / 1 h / Heating View Scheme