1: 95 percent / Grubbs' catalyst / CH2Cl2 / 18 h / Heating 2: 74.2 percent / NaH / toluene / 18 h / 45 °C 3: K2OsO4*2H2O; N-methylmorpholine oxide; pyridine / acetone; H2O / 168 h / 20 °C 4: 100 percent / NaH; tetrabutylammonium iodide / tetrahydrofuran / 48 h / 20 °C 5: 83.7 percent / NaOH / methanol; H2O / 2 h / 110 °C / microwave irradiation 6: 96.9 percent / imidazole / acetonitrile / 72 h / 65 °C 7: 91.8 percent / cerium(IV) ammonium nitrate / acetonitrile; H2O / 3 h / 20 °C 8: 93.4 percent / CBr4; PPh3; Et3N / CH2Cl2 / 0 - 4 °C 9: 75.8 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 120 h / 20 °C 10: 93 percent / H2; PdCl2 / methanol / 2 h / 20 °C / 760 Torr View Scheme