Mechanism of the reaction of reducing carbohydrates with 2-cyanoacetamide, used for postcolumn labeling in high performance liquid chromatography for photometric, fluorimetric and electrochemical detection
compound were isolated from the reaction mixture of glucose and 2-cyanoacetamide by combination of column and paper chromatographies. On the basis of structural studies, the former compounds were considered to be 3-cyano-2-pyridone and 3-cyano-2-pyrrolidone derivatives, and the latter compound was identified as a conjugated diene-ol. These results suggest that the reaction was initiated by condensation