Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron called The nucleophilic silyl radical: dual-parameter correlation analysis of the relative rates of bromine-atom abstraction reactions as measured by a rigorous methodology, Author is Jiang, Xi-Kui; Ding, William Fa-Xiang; Zhang, Yu-Huang, which mentions a compound: 57825-30-6, SMILESS is CCC1=CC=C(CBr)C=C1, Molecular C9H11Br, Formula: C9H11Br.
The relative rates [kR(Y)values] of bromine-atom abstraction reactions of 13 p-Y-substituted benzyl bromides (Y = H, Et, tBu, Me3Si, MeS, Ph, F, Cl, Br, CF3, CN, CO2Me, SO2Me) by tris(trimethylsilyl)silyl radicals [(Me3Si)3Si•] in cyclohexane at 80 ° have been measured by a rigorous methodol. Correlation anal. of the kinetic data by the dual-parameter equation (log kY/kH = ρxσ+ρ•σ•) shows that the silyl radical is distinctly nucleophilic and the transition states of the bromine-atom abstraction reactions are affected by both the polar and spin-delocalization effects of the Y-substituents. Comparison of the |ρp/ρJJ•| values suggests that the contribution of the spin-delocalization effects in this Br-atom abstraction reaction may be greater than the spin-delocalization effects in some H-atom abstraction reactions.
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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider