Clean and Direct Synthesis of .ALPHA.,.ALPHA.'-Bithiophenes and Bipyrroles by Metal-Free Oxidative Coupling Using Recyclable Hypervalent Iodine(III) Reagents

  • Dohi Toshifumi
    College of Pharmaceutical Sciences, Ritsumeikan University Graduate School of Pharmaceutical Sciences, Osaka University
  • Morimoto Koji
    Graduate School of Pharmaceutical Sciences, Osaka University
  • Ogawa Chieko
    Graduate School of Pharmaceutical Sciences, Osaka University
  • Fujioka Hiromichi
    Graduate School of Pharmaceutical Sciences, Osaka University
  • Kita Yasuyuki
    College of Pharmaceutical Sciences, Ritsumeikan University

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  • Clean and direct synthesis of α,α'-bithiophenes and bipyrroles by metal-free oxidative coupling using recyclable hypervalent iodine(3) reagents
  • Clean and direct synthesis of a a bithiophenes and bipyrroles by metal free oxidative coupling using recyclable hypervalent iodine 3 reagents

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The facile and clean oxidative biaryl coupling reaction of thiophenes and pyrroles has been achieved using the recyclable hypervalent iodine(III) reagents having adamantane or methane structures. These iodine(III) reagents could be recovered from the reaction mixtures by a simple solid–liquid separation, i.e., filtration.

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