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. VII. Preparation of L-ribose, D-, and L-lyxose

V. Bílik and J. Čaplovič

Inst. Chem., Slovak Acad. Sci., Bratislava

Abstract: Epimerization of L-arabinose, D-xylose, or L-xylose catalyzed by molybdate ions gives besides the epimeric aldopentose also small amounts of the complementary pair of epimeric aldopentoses. A part of the starting aldose can be recovered from the reaction mixture by crystallization. The epimeric aldose (18 — 23%) is isolated either in the form of free sugar using ion-exchange chromatography on Dowex 50 W (Ba²⁺) or in the form of iV-phenylglycosylamine. Aldopentoses released upon hydrolysis of such derivatives crystallize without difficulties.

Full paper in Portable Document Format: 274a547.pdf

Chemical Papers 27 (4) 547–550 (1973)