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Reactions of saccharides catalyzed by molybdate ions. 44. Isolation of alditols from the mixture of saccharides

V. Bílik, M. Matulová, and I. Knězek

Institute of Chemistry, Slovak Academy of Sciences, CS-84238 Bratislava


Abstract: Alditols containing at least four vicinal hydroxyl groups are firmly bound to basic ion exchanger cyclized with hexaammonium heptamolybdate. Aldopentoses, aldohexoses, and 2-ketohexoses produce less stable complexes with molybdate ions than alditols and have a smaller retention on the ion-exchanging resin. Aldopentoses and aldohexoses are eluted from the ion exchanger with water, whilst alditols with 0.1 M-NH4OH. Oxalic, citric, and α-hydroxycarboxylic acids afford stable complexes with molybdate ions and therefore, they have to be removed from the mixture.

Full paper in Portable Document Format: 456a829.pdf


Chemical Papers 45 (6) 829–836 (1991)

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