49838-19-9Relevant academic research and scientific papers
N-NITRENES. I. FORMATION OF FREE RADICALS IN THE DISSOCIATION OF DIBENZYLAMINONITRENE
Savin, V. I.,Morozov, V. I.,Kitaev, Yu. P.
, p. 866 - 870 (2007/10/02)
By ESR with spin traps it was shown that the dissociation of dibenzylaminonitrene to nitrogen and bibenzyl takes place through the formation of benzyl radicals.Various methods of generation of dibenzylaminonitrene in the presence of spin traps (2-methyl-2-nitrosopropane, nitrosodurene, phenyl-N-tert-butyl-nitrone) give spin adducts (nitroxyl radicals) stable at room temperature.The formation of two nitroxyl radicals during the dissociation of dibenzylaminonitrene labeled at one methylene group with deuterium imdicates that one molecule of dibenzylaminonitrene gives two benzyl radicals during dissociation.
Spin Trapping in Electrochemistry. Nonaqueous Electrochemical Behavior of Nitroso Spin Traps
Gronchi, Gerard,Courbis, Pierre,Tordo, Paul,Mousset, Guy,Simonet, Jacquues
, p. 1343 - 1349 (2007/10/02)
The oxidative and reductive behavior of 11 nitroso compounds has been characterized in N,N-dimethylformamide (DMF) and acetonitrile, in order to evaluate their utility as spin traps in electrochemical processes.The "potential windows" of these spin traps are reported as well as preliminary applications to the study of direct or indirect electrochemical reduction of alkyl halides.
Photolytic Homolysis of the Metal-Carbon (sp3 or sp2) Bond of Alkyl or Acyl Transition-metal Complexes: an Electron Spin Resonance Study using Spin Trapping; and a Note on Aminyl Oxides
Hudson, Andrew,Lappert, Michael F.,Lednor, Peter W.,MacQuitty, Jonathan J.,Nicholson, Brian K.
, p. 2159 - 2163 (2007/10/02)
Irradiation of the following metal alkyls has been carried out in CH2Cl2 (or PhMe) in the presence of nitrosodurene, RNO (R = C6HMe4-2,3,5,6), in the cavity of an e.s.r. spectrometer: (R' = CH2Ph or CH2SiMe3), , (R' = Me, Et, or CH2Ph), cis- (R' = CH2SiMe3 or CH2CMe3), (R' = Me or CH2SiMe3), and (H2oep = 2,3,7,8,12,13,17,18-octaethylporphyrin and R' = Me, L = NC5H5; or R' = Et, L = OH2).Similar experiments have been performed on (i) the acylmetal complexes (R'' = CH2Cl, Me, Et, CH2Ph, or CHPh2) or (R'' = Me or CH2Ph), and (ii) the metal-metal bonded (M = Ru or Os).Finally, the dark reaction between the stable iron(I) complex and RNO in CH2Cl2 has been investigated.As a consequence, from the alkyls, metallo-aminyl oxides were observed, except for ML(n) = a platinum(I), gold(0), or cobalt(II) moiety, but the alkylaminyl oxides RN(O)R' were found in every case ; two of these (R' = CH2SiMe3 or CH2CMe3) are new and show remarkably different β-proton hyperfine couplings, attributed in part to a conformational difference allowing for close Si***O proximity for R' = CH2SiMe3, and also to the greater steric requirements of the neopentyl group.From the acyls, the corresponding metallo-aminyl oxide was invariably detected, but never the spin-trapped acyl radical RN(O)COR''; however, the corresponding spin-trapped alkyl radical RN(O)R'' was observed but only for the case of R'' = CH2Ph or CHPh2.The remaining experiments led to the e.s.r. characterisation of , ML(n) = Ru(CO)4(SiMe3), Os(CO)4(SiMe3), or Fe(μ-C3H5)(CO)3.
