Heterogeneous, Bimetallic Metathesis Catalysts by Reaction of Fischer‐type Carbene Complexes with Reduced Phillips Catalyst

Abstract

Catalytic metathesis reactions with carbene complexes are possible when these complexes are fixed on inorganic supports. Binding of Mo or W carbene complexes to the very efficient polymerization catalyst for the Phillips procedure, “SiO 2 /Cr”, resulted in their transformation to good metathesis catalysts. Cr carbene complexes, in contrast, gave rise to a system that is active neither for polymerization nor for metathesis.