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Olefin metathesis featuring ruthenium indenylidene complexes with a sterically demanding NHC Ligand

(2011) CHEMISTRY-A EUROPEAN JOURNAL. 17(18). p.5045-5053
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Abstract
The synthesis and characterization of two new ruthenium indenylidene complexes [RuCl(2)(SIPr)(Py)-(Ind)] 6 and [RuCl(2)(SIPr) (3-BrPy)-(Ind)] 7 featuring the sterically demanding N-heterocyclic carbene 1,3-bis(2,6-di isopropylphenyl)-4,5-dihydroimidazol-2-ylidene (SIPr) are reported. Remarkable activity was ob-served with these complexes in ring closing, enyne, and cross metathesis of olefins at low catalyst loadings. The performance of SIPr-bearing complexes 6 and 7 as well as [RuCl(2)(SIPr) (PCy(3))-(Ind)] 5 in ring opening metathesis polymerization is also disclosed. This work highlights the enormous influence of the neutral "spectator" ligands on catalyst activity and stability.
Keywords
N-HETEROCYCLIC CARBENE, indenylidene ruthenium complex olefin ring opening metathesis polymn, RING-CLOSING METATHESIS, POLYMERIZATION ROMP REACTIONS, CROSS-METATHESIS, CATALYSTS, PHOSPHINE, BEARING, INITIATORS, EFFICIENCY

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Chicago
Urbina Blanco, César Alejandro, Anita Leitgeb, Christian Slugovc, Xavier Bantreil, Herve Clavier, Alexandra MZ Slawin, and Steven Nolan. 2011. “Olefin Metathesis Featuring Ruthenium Indenylidene Complexes with a Sterically Demanding NHC Ligand.” Chemistry-a European Journal 17 (18): 5045–5053.
APA
Urbina Blanco, C. A., Leitgeb, A., Slugovc, C., Bantreil, X., Clavier, H., Slawin, A. M., & Nolan, S. (2011). Olefin metathesis featuring ruthenium indenylidene complexes with a sterically demanding NHC Ligand. CHEMISTRY-A EUROPEAN JOURNAL, 17(18), 5045–5053.
Vancouver
1.
Urbina Blanco CA, Leitgeb A, Slugovc C, Bantreil X, Clavier H, Slawin AM, et al. Olefin metathesis featuring ruthenium indenylidene complexes with a sterically demanding NHC Ligand. CHEMISTRY-A EUROPEAN JOURNAL. 2011;17(18):5045–53.
MLA
Urbina Blanco, César Alejandro, Anita Leitgeb, Christian Slugovc, et al. “Olefin Metathesis Featuring Ruthenium Indenylidene Complexes with a Sterically Demanding NHC Ligand.” CHEMISTRY-A EUROPEAN JOURNAL 17.18 (2011): 5045–5053. Print.
@article{8166513,
  abstract     = {The synthesis and characterization of two new ruthenium indenylidene complexes [RuCl(2)(SIPr)(Py)-(Ind)] 6 and [RuCl(2)(SIPr) (3-BrPy)-(Ind)] 7 featuring the sterically demanding N-heterocyclic carbene 1,3-bis(2,6-di isopropylphenyl)-4,5-dihydroimidazol-2-ylidene (SIPr) are reported. Remarkable activity was ob-served with these complexes in ring closing, enyne, and cross metathesis of olefins at low catalyst loadings. The performance of SIPr-bearing complexes 6 and 7 as well as [RuCl(2)(SIPr) (PCy(3))-(Ind)] 5 in ring opening metathesis polymerization is also disclosed. This work highlights the enormous influence of the neutral {\textacutedbl}spectator{\textacutedbl} ligands on catalyst activity and stability.},
  author       = {Urbina Blanco, C{\'e}sar Alejandro and Leitgeb, Anita and Slugovc, Christian and Bantreil, Xavier and Clavier, Herve and Slawin, Alexandra MZ and Nolan, Steven},
  issn         = {0947-6539},
  journal      = {CHEMISTRY-A EUROPEAN JOURNAL},
  keyword      = {N-HETEROCYCLIC CARBENE,indenylidene ruthenium complex olefin ring opening metathesis polymn,RING-CLOSING METATHESIS,POLYMERIZATION ROMP REACTIONS,CROSS-METATHESIS,CATALYSTS,PHOSPHINE,BEARING,INITIATORS,EFFICIENCY},
  language     = {eng},
  number       = {18},
  pages        = {5045--5053},
  title        = {Olefin metathesis featuring ruthenium indenylidene complexes with a sterically demanding NHC Ligand},
  url          = {http://dx.doi.org/10.1002/chem.201003082},
  volume       = {17},
  year         = {2011},
}

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