Dramatic enhancement of the alkene metathesis activity of Mo imido alkylidene complexes upon replacement of one tBuO by a surface siloxy ligand

Frédéric Blanc; Nuria Rendón; Romain Berthoud; Jean-Marie Basset; Christophe Copéret; Zachary J Tonzetich; Richard R Schrock

doi:10.1039/b805686m

Dramatic enhancement of the alkene metathesis activity of Mo imido alkylidene complexes upon replacement of one tBuO by a surface siloxy ligand

Dalton Trans. 2008 Jun 28:(24):3156-8. doi: 10.1039/b805686m. Epub 2008 Apr 23.

Authors

Frédéric Blanc¹, Nuria Rendón, Romain Berthoud, Jean-Marie Basset, Christophe Copéret, Zachary J Tonzetich, Richard R Schrock

Affiliation

¹ Université de Lyon, Institut de Chimie de Lyon, Laboratoire de Chimie, Catalyse, Polymères et Procédés, CNRS-ESCPE Lyon, 43 bd du 11 Novembre 1918, F-69616, Villeurbanne, Cedex, France.

PMID: 18688413
DOI: 10.1039/b805686m

Abstract

[(triple bond SiO)Mo(triple bond NAr)(=CHCMe2R)(OtBu)], a well-defined silica supported alkene metathesis catalyst precursor, shows a dramatic enhancement of activity and selectivity compared to [Mo(triple bond NAr)(=CHCMe2R)(OtBu)2] and [(triple bond SiO)Mo(triple bond NAr)(=CHCMe2R)(CH2tBu)], respectively.