Synthesis, characterization and catalytic function of a B 12-hyperbranched polymer

Keishiro Tahara, Hisashi Shimakoshi, Akihiro Tanaka, Yoshio Hisaeda

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)


    A new hybrid catalyst composed of a vitamin B12 derivative and a hyperbranched polymer (HBP) was synthesized and characterized by UV-vis and ESR spectroscopy as well as AFM. The B12-HBP showed good properties as a homogenous catalyst. The covalently-immobilized B12 moieties were efficiently solvated and the cobalt centers were accessible for pyridine guests. The B12-HBP showed high reactivity to 2-phenethylbromide and increased selectivity for reductive dimerization in the presence of TiO 2 with UV light irradiation.

    Original languageEnglish
    Pages (from-to)3035-3042
    Number of pages8
    JournalDalton Transactions
    Issue number12
    Publication statusPublished - 2010

    All Science Journal Classification (ASJC) codes

    • Inorganic Chemistry


    Dive into the research topics of 'Synthesis, characterization and catalytic function of a B 12-hyperbranched polymer'. Together they form a unique fingerprint.

    Cite this