Sojka, Stanley A.; Dinan, Frank J.; Kolarczyk, Robert published an article about the compound: 2-Chloropyridine 1-oxide( cas:2402-95-1,SMILESS:ClC1=CC=CC=[N+]1[O-] ).Computed Properties of C5H4ClNO. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:2402-95-1) through the article.
13C NMR spectra of substituted pyridine N-oxides were examined and compared to the spectra of the corresponding free pyridine bases. The N-oxide functionality causes significant shielding at the C-2, C-4, and C-6 positions. This shielding was associated with electron d. donation by the N-oxide functionality to these positions. The N-oxide functionality also caused an enhancement of the substituent α-effect for -NMe2, -OMe, and -NO2 groups.
Although many compounds look similar to this compound(2402-95-1)Computed Properties of C5H4ClNO, numerous studies have shown that this compound(SMILES:ClC1=CC=CC=[N+]1[O-]), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem