Osazones reaction with alkali

The M. show the following common reactions 1) copper, silver, and bismuth salts are reduced in solution. - 2) M. react with bases to form alcoholates, with concentrated alkali resinification occurs to furnish yellow and dark-colored products. - 3) No reaction occurs with hydrogen sulfite or fuchsin/sulfurous acid because the aldehyde group is masked. - 4) Reduction leads to multifunctional alcohols, e.g., hexitols. - 5) Oxidation gives rise to mono- and dicarboxylic acids (sugar acids). - 6) The alcohol groups can be esteri-fied. - 7) Addition of hydrogen cyanide occurs. - 8) Osazones are formed with phenylhydrazine. 

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