Dramatic enhancement of the alkene metathesis activity of Mo imido alkylidene complexes upon replacement of one tBuO by a surface siloxy ligand.
[(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.
Blanc
Frédéric
F
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.
Rendón
Nuria
N
Berthoud
Romain
R
Basset
Jean-Marie
JM
Copéret
Christophe
C
Tonzetich
Zachary J
ZJ
Schrock
Richard R
RR