Synthesis of N‐substituted 3‐hydroxy‐2‐methyl‐4‐pyridones and ‐pyridonimines

This is the authors' abstract. We don't add key points for this paper.

Carbohydrates with 1,4 glycosidic bonds like maltose, lactose, dextrin or starch react with primary amines as well as amino acids or proteins to give i.e. 3‐hydroxy‐2‐methyl‐4‐pyridones 5 and 3‐hydroxy‐2‐methyl‐4‐pyridonimines 7. A generally applicable synthesis of compounds of this type is described. The pyridones 5 and pyridonimines 7 are strongly complexing agents. Molybdenum‐derivatives, for instance, are suitable as fairly stable oxidation catalysts.