The reaction of tungsten(VI) alkylidyne complexes with inorganic oxides: involvement of the resulting alkylidene ligand in olefin metathesis
Abstract
Although Schrock-type tungsten alkylidyne complexes react with inorganic oxides with formation of surface tungsten alkylidene species, the high catalytic activity of W(CCMe3)(CH2CMe3)3/Nb2O5 for the metathesis of Z-pent-2-ene does not seem to be correlated to the concentration of the alkylidene ligand, measured by specific reactions.