chromium(VI) oxide in water; acetic acid T=65°C; 0.75 h;

1: 50 percent / tetrahydrofuran; diethyl ether / 0.5 h / Heating 2: 28 percent / chromium trioxide / acetic acid; H2O / 0.75 h / 65 °C View Scheme

1: 77 percent / activated manganese dioxide / CHCl3 / 30 h / Heating 2: 50 percent / tetrahydrofuran; diethyl ether / 0.5 h / Heating 3: 28 percent / chromium trioxide / acetic acid; H2O / 0.75 h / 65 °C View Scheme

1: 50 percent / tetrahydrofuran; diethyl ether / 0.5 h / Heating 2: 28 percent / chromium trioxide / acetic acid; H2O / 0.75 h / 65 °C View Scheme

1: 95 percent / lithium aluminium hydride / tetrahydrofuran / 4 h / Ambient temperature 2: 77 percent / activated manganese dioxide / CHCl3 / 30 h / Heating 3: 50 percent / tetrahydrofuran; diethyl ether / 0.5 h / Heating 4: 28 percent / chromium trioxide / acetic acid; H2O / 0.75 h / 65 °C View Scheme