Abstract Pyridine, 2-methylpyridine, 3-methylpyridine, 4-methylpyridine, 2, 4- dimethylpyridine, 2, 6-dimethylpyridine, quinoline, isoquinoline and 2-chloropyridine are readily oxidized to their N-oxides with a solution of trichloroisocyanuric acid, acetic acid, sodium acetate and water in acetonitrile and methylene dichloride in 78%–90% yields.
