GB289280A — Process for the oxidation of aldoses

USPTO Abstract

289,280. Ellis, G. B., (Chemical Works, formerly Sandoz). June 17, 1927. Monocarboxylic acids of aldoses. - In the oxidation of aldoses to the corresponding monocarboxylic acids bv means of hypochlorites in the presence of suitable bromine or iodine derivatives, an alkaline medium is used throughout the process, which is conducted at a temperature of 15‹ C. or below. In examples, gluconic acid is produced by oxidizing glucose by means of chlorine in the presence of excess caustic potash lye or milk of lime and a small quantity of sodium bromide. According to other examples, glucose is oxidized by means of chlorine in the presence of bromine and excess of magnesia usta, and galactose by means of chlorine in the presence of bromine and excess of milk of lime. In a further example lactose is oxidized in the presence of iodine and milk of lime by means of chlorine. Mannose and maltose may be similarly oxidized.