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Cooperative Ligand Effects in Phase-Switching Homogeneous Catalysts

Authors

  • Molise Mokhadinyana,

    1. EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST, Scotland (UK)
    2. Research Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006 (South Africa)
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  • Simon L. Desset,

    1. EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST, Scotland (UK)
    2. Research Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006 (South Africa)
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  • Prof. D. Bradley G. Williams,

    Corresponding author
    1. Research Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006 (South Africa)
    • Research Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park, 2006 (South Africa)
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  • Prof. David J. Cole-Hamilton

    Corresponding author
    1. EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST, Scotland (UK)
    • EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, KY16 9ST, Scotland (UK)
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  • We thank Sasol Technology Pty (M.M) and the Association of Commonwealth Universities (M.M.) for support.

Abstract

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It takes two: Xantphos ligands that contain amidate groups are selective for the linear versus the branched-chain products in the rhodium-catalyzed hydroformylation of 1-octene. However, the catalyst only undergoes CO2-mediated phase switching in the presence of amidine-substituted triphenylphosphine (see scheme).

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