25087-41-6Relevant articles and documents
Determination of the rate constants of the addition of primary alkyl radicals to allylstannanes
Ferkous, Fouad,Degueil-Castaing, Marie,Deleuze, Herve,Maillard, Bernard
, p. 247 - 250 (2007/10/03)
The rate constants and the activation parameters of the addition of primary alkyl radicals to allyldibutyl-4,7,10-trioxaundecylstannane 1 and (2-ethoxycarbonylprop-2-enyl)dibutyl-4,7,10-trioxaundecylstannane 2 were determined by studying their respective free radical reactions with (2-bromo-1,1-dimethylethyl)benzene and 6-bromohex-1-ene at different temperatures.
One-Electron Oxidation of Alkylbenzenes in Acetonitrile by Photochemically Produced NO3.: Evidence for an Inner-Sphere Mechanism
Giacco, Tiziana Del,Baciocchi, Enrico,Steenken, Steen
, p. 5451 - 5456 (2007/10/02)
The reaction between NO3. and polyalkylbenzenes was studied using 308-nm laser flash photolysis of cerium(IV) ammonium nitrate in the presence of the alkylbenzenes in acetonitrile solution.For all benzenes, with the exception of monoalkylbenzenes and o- and m-xylene, the reaction with NO3. was found to yield the corresponding radical cations and to proceed in an apparently straightforward bimolecular manner.For monoalkylbenzenes and o- and m-xylene, radicals were seen which are derived from the parents by formal loss of H. from the side chain of the aromatic.This reaction proceeds via a complex between the aromatic and NO3. with the decomposition of the complex being rate determining at higher concentrations of aromatic (rate constants for decomposition between 6 * 105 and 4 * 107 s-1).In the complex, electron transfer from the aromatic to NO3. is suggested to be concerted with deprotonation of the incipient radical cation.Formation of a complex between NO3. and aromatics is likely even in those cases where radical cations are observed, with the assumption that in these cases the complex decomposition rate is greater than 6 * 107 s-1.
