Studies on the Degeneration Process of Sugars. VI

Reaction of Periodic Acid on Two Hexasaccharides

Abstract

The hexasaccharides of Schardinger and Akiya-Watanabe were oxidized with periodic acid to aldehydes and derived to p-nitrophenylhydrazones. The hydrazone obtained from Schardinger's hexasaccharide contained four p-nitrophenylhydrazine groups bonded on both sides of glyoxal and erythrose. The hydrazone obtained from Akiya-Watanabe's hexasaccharide contained six p-nitrophenylhydrazine goups in a molecule, bonded to the glyoxal sides alone. Acid decomposition of the two hydrazones were also carried out.