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Ruthenium complexes bearing two N-heterocyclic carbene ligands in low catalyst loading olefin metathesis reactions

(2010) ORGANOMETALLICS. 29(13). p.3007-3011
Author
Organization
Abstract
The synthesis of ruthenium indenylidene complexes containing mixed N-heterocyclic carbene ligands featuring one sterically small NHC [IMe(Me) (1,3,4,5-tetramethylimidazol-2-ylidene), I(i)Pr(Me) (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene), and ICy (1,3-dicyclohexylimidazol-2-ylidene)] and one larger congener SIMes (1,3-bis-(2,4,6 trimethylphenyl)imidazolin-2-ylidene) is described. Characterization by X-ray diffraction allowed for calculation of percent buried volume of the small NHCs in these complexes and for speculation on the relationship NHC/catalytic activity. In addition, these complexes displayed an enhanced stability but also a high ability to promote ring-closing metathesis reactions at catalyst loadings as low as 0.05 mol %.
Keywords
RING-CLOSING METATHESIS, INDENYLIDENE COMPLEXES, TETRASUBSTITUTED OLEFINS, EFFICIENT, PHOSPHINE, TRANSFORMATIONS, POLYMERIZATION, BENZYLIDENE, LIMITATIONS, KETONES

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Chicago
Bantreil, Xavier, Rebecca AM Randall, Alexandra MZ Slawin, and Steven Nolan. 2010. “Ruthenium Complexes Bearing Two N-heterocyclic Carbene Ligands in Low Catalyst Loading Olefin Metathesis Reactions.” Organometallics 29 (13): 3007–3011.
APA
Bantreil, X., Randall, R. A., Slawin, A. M., & Nolan, S. (2010). Ruthenium complexes bearing two N-heterocyclic carbene ligands in low catalyst loading olefin metathesis reactions. ORGANOMETALLICS, 29(13), 3007–3011.
Vancouver
1.
Bantreil X, Randall RA, Slawin AM, Nolan S. Ruthenium complexes bearing two N-heterocyclic carbene ligands in low catalyst loading olefin metathesis reactions. ORGANOMETALLICS. 2010;29(13):3007–11.
MLA
Bantreil, Xavier et al. “Ruthenium Complexes Bearing Two N-heterocyclic Carbene Ligands in Low Catalyst Loading Olefin Metathesis Reactions.” ORGANOMETALLICS 29.13 (2010): 3007–3011. Print.
@article{8169264,
  abstract     = {The synthesis of ruthenium indenylidene complexes containing mixed N-heterocyclic carbene ligands featuring one sterically small NHC [IMe(Me) (1,3,4,5-tetramethylimidazol-2-ylidene), I(i)Pr(Me) (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene), and ICy (1,3-dicyclohexylimidazol-2-ylidene)] and one larger congener SIMes (1,3-bis-(2,4,6 trimethylphenyl)imidazolin-2-ylidene) is described. Characterization by X-ray diffraction allowed for calculation of percent buried volume of the small NHCs in these complexes and for speculation on the relationship NHC/catalytic activity. In addition, these complexes displayed an enhanced stability but also a high ability to promote ring-closing metathesis reactions at catalyst loadings as low as 0.05 mol %.},
  author       = {Bantreil, Xavier and Randall, Rebecca AM and Slawin, Alexandra MZ and Nolan, Steven},
  issn         = {0276-7333},
  journal      = {ORGANOMETALLICS},
  keywords     = {RING-CLOSING METATHESIS,INDENYLIDENE COMPLEXES,TETRASUBSTITUTED OLEFINS,EFFICIENT,PHOSPHINE,TRANSFORMATIONS,POLYMERIZATION,BENZYLIDENE,LIMITATIONS,KETONES},
  language     = {eng},
  number       = {13},
  pages        = {3007--3011},
  title        = {Ruthenium complexes bearing two N-heterocyclic carbene ligands in low catalyst loading olefin metathesis reactions},
  url          = {http://dx.doi.org/10.1021/om100310f},
  volume       = {29},
  year         = {2010},
}

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