potassium hydroxide; potassium permanganate in water 12 h; Ambient temperature;

1: With sodium hydride; sodium iodide in tetrahydrofuran; mineral oil 2: in tetrahydrofuran; diethyl ether; mineral oil 0.5 h;

1: 1) sodium / 1) 100-120 deg C, 2) 100-120 deg C, 2-3 h 2: 51 percent / potassium hydroxide, potassium permanganate / H2O / 12 h / Ambient temperature View Scheme