Dolenc, Darko; Plesnicar, Bozo published the artcile< Abstraction of Iodine from Aromatic Iodides by Alkyl Radicals: Steric and Electronic Effects>, Application of C19H34O2, the main research area is steric electronic effect abstraction iodine aromatic iodides alkyl radical; crystallog aromatic iodide.
Abstraction of the iodine atom from aryl iodides by alkyl radicals takes place in some cases very efficiently despite the unfavorable difference in bond dissociation energies of C-I bonds in alkyl and aryl iodides. The abstraction is most efficient in iodobenzenes, ortho-substituted with bulky groups. The ease of abstraction can be explained by the release of steric strain during the elimination of the iodine atom. The rate of abstraction correlates fairly well with the strain energy, calculated by d. functional theory (DFT) and Hartree-Fock (HF) methods as a difference in the total energy of ortho and para isomers. However, besides the steric bulk, the presence of some other functional groups in an ortho substituent also influences the rate. The stabilization of the transition state, resembling a 9-I-2 iodanyl radical, by electron-withdrawing groups seems to explain a pos. sign of the Hammett ρ value in the radical abstraction of halogen atoms.
Journal of Organic Chemistry published new progress about Abstraction reaction (iodine). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.
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