Oxidation of 1-aminopyridinium, 1-aminoquinolinium, and 2-aminoisoquinolinium bromides with lead(IV) acetate
Abstract
The title reactions afford, respectively, 1-acetamido-2-pyridone, 1-acetamido-2-quinolone, and 2-acetamido-1-isoquinolone. In the case of 1-amino-2-methyl- and 1-amino-4-methyl-pyridinium bromides, ring bromination accompanies oxidation, suggesting the involvement of the bromide ion in the oxidation process.