Abstract
Electrolytic reduction of D-ribonolactone at constant current density was examined using the sulfates of 28 kinds of amines, such as mono-, di-, and tri-alkylamines, hydroxyalkylamines, alicyclic amines, and aromatic amines, as the electrolyte. It was found that D-ribose is obtained approximately quantitatively with some amines, specifically hexylamine sulfate and heptylamine sulfate. The yield of D-ribose differed markedly according to the kind of the amine used, suggesting some correlation to exist between the yield and the structure of amines used. Some discussions were made on this point from the decomposition potential.