Mesolysis Processes with Benzylic Carbon–Oxygen Bond Cleavage in Radical Anions of Aryl Benzyl Ethers Studied by Electron Pulse Radiolysis in DMF

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Author(s)

    • Yamaji Minoru
    • Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
    • Tojo Sachiko
    • The Institute of Scientific and Industrial Research (SANKEN), Osaka University
    • Fujitsuka Mamoru
    • The Institute of Scientific and Industrial Research (SANKEN), Osaka University
    • Sugimoto Akira
    • The Institute of Scientific and Industrial Research (SANKEN), Osaka University
    • Majima Tetsuro
    • The Institute of Scientific and Industrial Research (SANKEN), Osaka University

Abstract

Based on transient absorption measurements obtained upon electron-pulse radiolysis of aromatic ethers in <i>N</i>,<i>N</i>-dimethylformamide (DMF), mesolysis processes of the radical anions were investigated. We observed transient absorption spectral change due to the formation of the radical anions in the temperature range (220–295 K). The transient absorption of the radical anions decreased with first-order kinetics along with the growth of the absorption spectrum of the corresponding benzylic radical. Arrhenius analysis of the decay rates of the radical anions provided the activation energies and the frequency factors for the mesolysis. These observations indicated that the mesolysis of the radical anions occurs via a stepwise mechanism, resulting in the formation of benzylic radical and phenolate anion due to the C–O bond cleavage.

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 89(7), 798-803, 2016

    The Chemical Society of Japan

Codes

  • NII Article ID (NAID)
    130005253046
  • Text Lang
    ENG
  • ISSN
    0009-2673
  • Data Source
    J-STAGE 
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