Silica‐Supported Cationic Tungsten Imido Alkylidene Stabilized by an N‐Heterocyclic Carbene Ligand Boosts Activity and Selectivity in the Metathesis of α‐Olefins
Abstract
A well‐defined silica‐supported cationic W imido alkylidene was prepared through surface organometallic chemistry. This catalyst shows preferential activity towards α‐ over internal olefins, which is atypical for W‐based catalysts, but consistent with the strong σ‐donating ability of the NHC ancillary ligand. Complementing the studies on tungsten‐based d0 metathesis catalysts, the silica‐supported cationic W imido alkylidene displays the highest activity among W imido catalysts for α‐olefins and shows improved selectivity for this class of olefins compared to Mo‐based catalysts. © 2020 Wiley‐VHCA AG. Show more
Publication status
publishedExternal links
Journal / series
Helvetica Chimica ActaVolume
Pages / Article No.
Publisher
Wiley‐VHCASubject
Olefin metathesis; Surface organometallic chemistry; Surface chemistry; Tungsten; Tungsten N-heterocyclic carbeneOrganisational unit
03872 - Copéret, Christophe / Copéret, Christophe
More
Show all metadata