The effect of the change of synthetic route on the product 14248-66-9

There is still a lot of research devoted to this compound(SMILES：O=[N+](C1=C(C)C=[N+]([O-])C=C1C)[O-])Electric Literature of C7H8N2O3, and with the development of science, more effects of this compound(14248-66-9) can be discovered.

So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Berdys, Joanna; Makowski, Mariusz; Makowska, Monika; Puszko, Aniela; Chmurzynski, Lech researched the compound: 3,5-Dimethyl-4-nitropyridine 1-oxide( cas:14248-66-9 ).Electric Literature of C7H8N2O3.They published the article 《Experimental and Theoretical Studies of Acid-Base Equilibria of Substituted 4-Nitropyridine N-Oxides》 about this compound( cas:14248-66-9 ) in Journal of Physical Chemistry A. Keywords: nitropyridine oxide derivative acid base equilibrium acetonitrile thermodn. We’ll tell you more about this compound (cas:14248-66-9).

By using the potentiometric titration method, acidity constants in the polar aprotic solvent acetonitrile (in the form of pKaAN values) of cations obtained by protonation of 13 substituted 4-nitropyridine N-oxides and cationic homoconjugation constants (KBHB+) of the cationic acids conjugated with the N-oxides studied have been determined A correlation has been established between the tendency toward cationic homoconjugation (expressed as log KBHB+) and the basicity of the N-oxides in acetonitrile (pKaAN). Further, by using ab initio methods at the RHF and MP2 levels utilizing the Gaussian 6-31G* basis set, energies and Gibbs free energies have been determined of protonation and formation of homocomplexed cations stabilized by O···H···O bridges in the gas phase. The calculated protonation energies, ΔEprot, and Gibbs free enthalpies, ΔGprot, in vacuo have been found to correlate well with the acid dissociation constants (expressed as pKaAN values) of protonated N-oxides, whereas the calculated energies, ΔEBHB+, and Gibbs free energies, ΔGBHB+, of homoconjugation do not correlate with the cationic homoconjugation constant values determined in acetonitrile.

There is still a lot of research devoted to this compound(SMILES：O=[N+](C1=C(C)C=[N+]([O-])C=C1C)[O-])Electric Literature of C7H8N2O3, and with the development of science, more effects of this compound(14248-66-9) can be discovered.

Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem