1: 37 percent / potassium chlorate, acetic acid, osmium tetraoxide / ethanol; H2O / 24 h / Ambient temperature 2: 1.) acetic acid, 2.) sodium hydroxide / 1.) 1h, 40 deg C, 2.) 1h, 50 deg C 3: 86 percent / pyridine / 0 °C View Scheme

water; acetic acid 1 h; Heating;