Hydrazones, Osazones, and Related Compounds

The reaction of D-glucose phenylhydrazone with glacial acetic acid has been examined iV-fructosyl-A -glucosylphenylhydrazine was formed at 30 °C, whereas 1,2-dideoxy-l -phenylimino-2-phenylhydrazono-D-ara6//io-hexose was obtained after brief treatment at 100 2-(D-arfli //jo-Tetrahydroxybutyl)quinoxaline was also formed. The acetolysis of the 2,3,4,6-tetra-0-acetyl-j8-D-glucopyranosyl 2,4-dinitrophenylhydrazine (154) yielded a mixture of acyclic and cyclic hydrazones 

Carbohydrates containing a carbonyl group reacted with 1-dimethylamino-naphthalene-5-sulphonylhydrazine (dansylhydrazine) to give fluorescent hydra-zones.  

Gerecs, Acta Chim. Acad. Sci. Hung., 1975, 84, 467 Chem. Abs., 1975, 83, 28 476x). 

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