1: ammonium cerium (IV) nitrate / water; acetonitrile / 1 h / 0 °C / |Inert atmosphere 2: sodium hydroxide; water / 1,4-dioxane / 20 h / |Inert atmosphere; |Reflux View Scheme

ammonium cerium (IV) nitrate in water; acetonitrile T=0°C; 1 h; Inert atmosphere;