Quality Control of Oxazole. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Oxazole, is researched, Molecular C3H3NO, CAS is 288-42-6, about Relating nucleus independent chemical shifts with integrated current density strengths. Author is Radenkovic, Slavko; Djordjevic, Sladjana.
Indexes based on the nucleus independent chem. shift (NICS) are the most frequently used in anal. of magnetic aromaticity. The magnetically induced c.d., on the other hand, is a key concept in defining magnetic aromaticity. The integrated current strength (current strength susceptibility) was found to be a very useful tool in aromaticity studies. There is widely accepted notion that the properly chosen NICS-based index can provide information on the c.d. strength and direction in a mol. of interest. In this work, a detailed numerical testing of the relationship between the integrated bond current strength and the most employed NICS indexes was performed for a set of 43 monocyclic aromatic mols. Based on the statistical data anal., the relationship between the bond current strength and its π and σ electron components, on one side, and the isotropic NICS (NICSiso and NICSπ,iso) and zz-component of the NICS tensor (NICSzz and NICSπ,zz), on the other side, was examined It was found that between the NICSπ,zz(1) and π-electron bond current strengths there is very good linear correlation. Quite surprisingly, it was revealed that the NICSiso(1) and NICSzz(1) are not correlated with the π electron bond current strengths. On the other hand, a reasonably good linear correlation was found between the NICSzz(1) and total bond current strengths.
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Oxazolidine – Wikipedia,
Oxazolidine | C3H7NO – PubChem