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Molybdic Acid-Catalysed Isomerization of D-Ribulose and D-Xylulose to the Corresponding 2- C -(Hydroxymethyl)-D-Tetroses

2000; Taylor & Francis; Volume: 19; Issue: 7 Linguagem: Inglês

10.1080/07328300008544121

1532-2327

Zuzana Hricovı́niová, Miloš Hricovı́ni, Ladislav Petruš,

Diet, Metabolism, and Disease

ABSTRACT 2-C-(Hydroxymethyl)-D-erythrose (2) and 2-C-(hydroxymethyl)-D-threose (4) have been stereospecifically synthesized in one-step by a molybdic acid-catalysed isomerization reaction from respective D-xylulose (1) and D-ribulose (3). In the case of interconversion of 1 to 2, the content of the 2-C-branched chain tetrose in the equilibrium mixture can be doubled if boric acid is present in the reaction mixture in addition to the catalyst.