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Reactions of Saccharides Catalyzed by Molybdate Ions. 45. Utilization of Molybdic and Peroxomolybdic Acids for Preparation of Aldoses

V. Bílik and I. Kněžek

Institute of Chemistry, Slovak Academy of Sciences, CS-842 38 Bratislava

 

Abstract: Molybdic acid epimerizes aldoses under formation of an equilibrium mixture consisting of C-2 epimeric aldoses, whereas peroxomolybdic acid inhibits the epimerization reaction. Peroxomolybdic acid was also responsible for both the stereoselective hydroxylation of glycals to aldoses with a cis arrangement of hydroxyl groups at carbon atoms C-2 and C-3 and oxidative decomposition of alkali metal salts of 1-deoxy-1-nitroalditols to the corresponding aldoses; it simultaneously prevented the subsequent epimerization of aldoses being formed.

Full paper in Portable Document Format: 463a193.pdf

 

Chemical Papers 46 (3) 193–195 (1992)

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