1: 91 percent / Potassium carbonate / acetone / Heating 2: 66 percent / various solvent(s) / 3 h / 200 °C 3: 84 percent / CHCl3; pyridine / 25 °C 4: 100 percent / KIO4 / Osmium tetraoxide / ethyl acetate; H2O / 7.5 h 5: Jones reagent / acetone / 0.33 h 6: 99 percent / 1 N HCl / dioxane / 100 °C View Scheme

1: 91 percent / Potassium carbonate / acetone / Heating 2: 66 percent / various solvent(s) / 3 h / 200 °C 3: 84 percent / CHCl3; pyridine / 25 °C View Scheme