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A New Family of Halogen-Chelated Hoveyda–Grubbs-Type Metathesis Catalysts

Authors

  • Dr. Michał Barbasiewicz,

    Corresponding author
    1. Faculty of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw (Poland), Fax: (+48) 22-822-5996
    • Faculty of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw (Poland), Fax: (+48) 22-822-5996===

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  • Dr. Michał Michalak,

    1. Faculty of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw (Poland), Fax: (+48) 22-822-5996
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  • Prof. Karol Grela

    Corresponding author
    1. Faculty of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw (Poland), Fax: (+48) 22-822-5996
    • Faculty of Chemistry, Warsaw University, Pasteura 1, 02-093 Warsaw (Poland), Fax: (+48) 22-822-5996===

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Abstract

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Coordination, not insertion: New ruthenium benzylidenes with a chelating halogen atom were easily prepared and showed excellent stability and activity as metathesis catalysts (see figure). Structure–activity studies reveal that strength of the ruthenium–halogen interaction can be tuned across a wide range to set up a family of latent to active catalysts.

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