Formula: C7H8N2O3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 3,5-Dimethyl-4-nitropyridine 1-oxide, is researched, Molecular C7H8N2O3, CAS is 14248-66-9, about Syntheses of sterically hindered zwitterionic pyridinium phenolates as model compounds in nonlinear optics. Part 2.. Author is Diemer, Vincent; Chaumeil, Helene; Defoin, Albert; Fort, Alain; Boeglin, Alex; Carre, Christiane.
Pyridinium phenolates possess a dissym. delocalized π-electron system providing a huge quadratic nonlinearity. They are a promising class of mols. for applications in photoelectronics and photonics. Semiempirical calculations indicate that the interplanar angle between the two aromatic rings leads to enhancement in the NLO properties of these compounds The confirmation of this feature may be provided by the study of a new series of sterically hindered pyridinium phenolates bearing two tert-Bu substituents at the ortho position(s) of the phenolate functionality. Such bulky groups would enhance the solubility of zwitterions in organic solvents and would limit the formation of aggregates. Their efficient preparations by using Suzuki cross-coupling reactions involving 3,5-dialkylated 4-bromopyridine N-oxides are described.
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Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem