Iridium-catalyzed enantioselective formal [4+2] cycloaddition of biphenylene and alkynes for the construction of axial chirality

Takanori Shibata, Go Nishizawa, Kohei Endo

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    Abstract

    Chiral iridium complex catalyzed a formal [4+2] cycloaddition of biphenylene with disubstituted alkynes, which was initiated by carbon-carbon bond cleavage. Axially chiral 9,10-disubstituted phenanthrenes were enantiomerically obtained.

    Original languageEnglish
    Pages (from-to)765-768
    Number of pages4
    JournalSynlett
    Issue number5
    DOIs
    Publication statusPublished - 2008 Mar 18

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    Keywords

    • Alkynes
    • Asymmetric catalysis
    • Cycloadditions
    • Iridium
    • Rhodium

    ASJC Scopus subject areas

    • Organic Chemistry

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