potassium cyanide; manganese(IV) oxide 12 h; Ambient temperature;

sodium hydroxide in water T=40°C; 0.0833333 h;

1: copper oxide-chromium oxide; ethanol / 160 °C / 120623 Torr / Hydrogenation 2: diethyl ether; phosphorus (III)-bromide 3: aqueous ethanol 4: aq.-ethanolic KOH-solution View Scheme

ethanol; copper oxide-chromium oxide T=160°C; P=120623 Torr; Hydrogenation;