Alkane Metathesis Catalyzed by a Well-Defined Silica-Supported Mo Imido Alkylidene Complex: [([TRIPLE BOND]SiO)Mo([DOUBLE BOND]NAr)([DOUBLE BOND]CHtBu)(CH2tBu)]

Authors

  • Frédéric Blanc,

    1. Laboratoire de Chimie Organométallique de Surface, UMR 9986 CNRS–ESCPE Lyon, 43 bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France, Fax: (+33) 472431795
    Search for more papers by this author
  • Christophe Copéret Dr.,

    1. Laboratoire de Chimie Organométallique de Surface, UMR 9986 CNRS–ESCPE Lyon, 43 bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France, Fax: (+33) 472431795
    Search for more papers by this author
  • Jean Thivolle-Cazat Dr.,

    1. Laboratoire de Chimie Organométallique de Surface, UMR 9986 CNRS–ESCPE Lyon, 43 bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France, Fax: (+33) 472431795
    Search for more papers by this author
  • Jean-Marie Basset Dr.

    1. Laboratoire de Chimie Organométallique de Surface, UMR 9986 CNRS–ESCPE Lyon, 43 bd du 11 Novembre 1918, 69616 Villeurbanne Cedex, France, Fax: (+33) 472431795
    Search for more papers by this author

  • F.B. is grateful to the French Ministry of Education, Research, and Technology (MENRT) for a predoctoral fellowship. We thank R. R. Schrock and A. Sinha for providing a sample of [Mo([DOUBLE BOND]NAr)([DOUBLE BOND]CHtBu)(CH2tBu)2]. We are also indebted to the CNRS and ESCPE Lyon for financial support.

Abstract

original image

A two-functions-in-one catalyst precursor allows an olefin metathesis catalyst to be turned into an alkane metathesis catalyst. A silica-supported alkyl alkylidene molybdenum complex containing an ancillary imido ligand is a highly active olefin metathesis catalyst and also acts as a catalyst precursor for alkane metathesis. This system involves a single metal with dual properties and shows that ancillary ligands are compatible with alkane metathesis reactions.

Ancillary