1: 68 percent / ozone; triphenylphosphane / CH2Cl2; methanol 2: hydroxylamine hydrochloride; sodium acetate / ethanol 3: 1.52 g / sodium acetate / acetic anhydride / Heating 4: potassium hydroxide / methanol / 2 h / Heating 5: 95 percent / triphenylphosphane / CCl4 / 2 h / Heating 6: 91 percent / 1 h / 130 °C View Scheme

1: 68 percent / ozone; triphenylphosphane / CH2Cl2; methanol 2: hydroxylamine hydrochloride; sodium acetate / ethanol 3: 1.52 g / sodium acetate / acetic anhydride / Heating 4: potassium hydroxide / methanol / 2 h / Heating 5: 96 percent / triphenylphosphane / CCl4 / 2 h / Heating 6: 92 percent / 1 h / 130 °C View Scheme