1: 35percent H2O2 / acetic acid / 7 h / 90 - 95 °C 2: 10.9 percent / acetonitrile / 0.42 h / Irradiation 3: 32.1 percent / methanol / 2 h / 100 °C / in a sealed tube 4: methanol / 4 h / 100 °C / Heating; in a sealed tube View Scheme

1: 35percent H2O2 / acetic acid / 7 h / 90 - 95 °C 2: CDCl3 / Irradiation 3: 11.3 percent / acetone; H2O / Ambient temperature View Scheme

dihydrogen peroxide in acetic acid T=90 - 95°C; 7 h; Yield given;