ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Reactions of saccharides catalyzed by molybdate ions. 40. Inhibition of the epimerization of aldoses

V. Bílik and I. Knězek

Institute of Chemistry, Centre for Chemical Research, Slovak Academy of Sciences, CS-84238 Bratislava

Abstract: The molybdate-catalyzed epimerization of aldoses is completely inhibited by oxalic acid at the mole ratio Mo^VI : (COOH)₂ = 1:2 in the reaction medium. The inhibitory effect is not so strong with citric acid,  α-hydroxydicarboxylic acids, alditols, and aldonic acids. The epimerization of aldoses does not proceed at pH < 0.1 and pH > 7. Optimum pH for the reaction lies between pH 1.5 and 3.

Full paper in Portable Document Format: 441a89.pdf

Chemical Papers 44 (1) 89–96 (1990)