Radical Addition of Polyhaloalkanes to 2-Ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

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  • Tatsuya Wada
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University
  • Yuto Sumida
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University
  • Azusa Kondoh
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University
  • Hideki Yorimitsu
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University
  • Koichiro Oshima
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University

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<jats:title>Abstract</jats:title> <jats:p>Radical addition of bromotrichloromethane to 2-ethynyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane takes place in the presence of a radical initiator in refluxing benzene. Perfluoroalkyl iodides undergo similar addition reactions. The addition reactions proceed in an anti fashion. The corresponding 1-halo-1-alkenylboronic esters are useful intermediates that undergo cross-coupling reactions.</jats:p>

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