1.1: BH3*THF / tetrahydrofuran / 0 °C 1.2: 94 percent / 30percent aq. H2O2; 3 N aq. NaOH / 0 - 20 °C 2.1: 2,6-lutidine / CH2Cl2 / -30 °C 3.1: H2 / Pd/C 4.1: 97 percent / TPAP; NMO / CH2Cl2 / 2 h / 20 °C 5.1: 92 percent / LiHMDS / dimethylformamide; hexamethylphosphoric acid triamide; tetrahydrofuran / -35 - 20 °C 6.1: 98 percent / TBAF / tetrahydrofuran / 4 h / 20 °C 7.1: 87 percent / O2; NaHCO3 / Pt / H2O; acetone; propan-2-ol / 50 °C View Scheme