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THE FIRST ISOLATION OF ISOMERIC α- AND β-PHENYLAZOXYPYRIDINE-N-OXIDES
Buncel, Erwin,Keum, Sam-Rok
, p. 1751 - 1753 (2007/10/02)
The oxidation of 4-phenylazopyridine gives rise to the isomeric α- and β-4-phenylazoxypyridine-N-oxides, contrary to a previous literature report. 3-Phenylazopyridine similarly affords the respective α- and β-azoxy compounds but 2-phenylazopyridine yields only α-azoxy product.
