TY - JOUR
T1 - Mixed N-Heterocyclic Carbene/Phosphite Ruthenium Complexes
T2 - The Effect of a Bulkier NHC.
AU - Urbina-Blanco, Cesar A.
AU - Bantreil, Xavier
AU - Wappel, Julia
AU - Schmid, Thibault E.
AU - Slawin, Alexandra M. Z.
AU - Slugovc, Christian
AU - Cazin, Catherine S. J.
PY - 2013/11/11
Y1 - 2013/11/11
N2 - The synthesis, characterization, and catalytic activity of two new complexes, 2a,b, featuring a sterically demanding NHC and two different phosphites are described. Complexes 2a,b display a mutually trans arrangement of the pi-acidic phosphite and the strong sigma-donor SIPr ligand (SIPr = N,N'-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene). The synergy between the phosphite and the NHC ligand was revealed in the RCM of challenging substrates leading to tetrasubstituted olefins where, in comparison to their phosphine-containing analogues, 2a,b allowed higher conversions of these challenging substrates.
AB - The synthesis, characterization, and catalytic activity of two new complexes, 2a,b, featuring a sterically demanding NHC and two different phosphites are described. Complexes 2a,b display a mutually trans arrangement of the pi-acidic phosphite and the strong sigma-donor SIPr ligand (SIPr = N,N'-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene). The synergy between the phosphite and the NHC ligand was revealed in the RCM of challenging substrates leading to tetrasubstituted olefins where, in comparison to their phosphine-containing analogues, 2a,b allowed higher conversions of these challenging substrates.
KW - RING-CLOSING METATHESIS
KW - CATALYZED OLEFIN METATHESIS
KW - INDENYLIDENE COMPLEXES
KW - CARBENE LIGANDS
KW - TETRASUBSTITUTED OLEFINS
KW - BEARING
KW - POLYMERIZATION
KW - MECHANISM
KW - SOLVENT
KW - REACTIVITY
UR - https://www.scopus.com/pages/publications/84887813681
U2 - 10.1021/om4004362
DO - 10.1021/om4004362
M3 - Article
SN - 0276-7333
VL - 32
SP - 6240
EP - 6247
JO - Organometallics
JF - Organometallics
IS - 21
ER -