Krylov, Igor B.; Kompanets, Mykhailo O.; Novikova, Katerina V.; Opeida, Iosip O.; Kushch, Olga V.; Shelimov, Boris N.; Nikishin, Gennady I.; Levitsky, Dmitri O.; Terentev, Alexander O. published the artcile< Well-known mediators of selective oxidation with unknown electronic structure: Metal-free generation and EPR study of imide-N-oxyl radicals>, COA of Formula: C8H3ClO3, the main research area is mediator selective oxidation electronic structure imideNoxyl radical.
Nitroxyl radicals are widely used in chem., materials sciences, and biol. Imide-N-oxyl radicals are subclass of unique nitroxyl radicals that proved to be useful catalysts and mediators of selective oxidation and CH-functionalization. An efficient metal-free method was developed for the generation of imide-N-oxyl radicals from N-hydroxyimides at room temperature by the reaction with (diacetoxyiodo)benzene. The method allows for the production of high concentrations of free radicals and provides high resolution of their EPR spectra exhibiting the superhyperfine structure from benzene ring protons distant from the radical center. An anal. of the spectra shows that, regardless of the electronic effects of the substituents in the benzene ring, the superhyperfine coupling constant of an unpaired electron with the distant protons at positions 4 and 5 of the aromatic system is substantially greater than that with the protons at positions 3 and 6 that are closer to the N-oxyl radical center. This is indicative of an unusual character of the spin d. distribution of the unpaired electron in substituted phthalimide-N-oxyl radicals. Understanding of the nature of the electron d. distribution in imide-N-oxyl radicals may be useful for the development of com. mediators of oxidation based on N-hydroxyimides.
Journal of Physical Chemistry A published new progress about Electron spin density. 118-45-6 belongs to class chlorides-buliding-blocks, and the molecular formula is C8H3ClO3, COA of Formula: C8H3ClO3.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics