Author's Organization：Institute of Pharmaceutical Sciences, Faculty of Medicine, Kyushu University Institute of Pharmaceutical Sciences, Faculty of Medicine, Kyushu University
Alkaline ferricyanide oxidation of some aromatic N-oxides was examined. Quinoline 1-oxide, lepidine 1-oxide, and isoquinoline 2-oxide were smoothly oxidized to the corresponding N-hydroxy-carbostyrils or-isocarbostyrils. From quinaldine 1-oxide, only a small amount of quinaldinic acid 1-oxide was obtained. In contrast, pyridine and nicotinic acid 1-oxide were not affected by this oxidation procedure.
