Formula: C7H8N2O3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 3,5-Dimethyl-4-nitropyridine 1-oxide, is researched, Molecular C7H8N2O3, CAS is 14248-66-9, about Acidity functions and the protonation of weak bases. VI. Amide acidity function. Its extension and application to N-oxides. Author is Johnson, Colin David; Katritzky, Alan R.; Shakir, Naeem.
The protonation of pyridine 1-oxides of low basicity in aqueous H2SO4 is correlated by the amide acidity function rather than the Hammett acidity function. The HA-scale was extended by measurements of the second protonation of phenazine 5,10-dioxide (I).
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem