sodium periodate in tetrahydrofuran; water 1 h; Ambient temperature;

tert.-butylhydroperoxide; selenium(IV) oxide in dichloromethane T=35°C; 72 h;

sodium periodate in tetrahydrofuran; water T=20°C;

sulfur dioxide; dinitrogen pentaoxide in water

1.1: 86 percent / KF; 18-C-6 / propan-2-ol / 20 °C 2.1: 83 percent / acetic anhydride; sodium acetate; 18-crown-6 / potassium fluoride / 20 °C 3.1: hydrogen / 10 percent Pd/C / ethyl acetate; acetic acid; ethanol 3.2: 94 percent / acetic acid; Zn powd. / 3 h / Heating View Scheme