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Impact of NHC ligand conformation and solvent concentration on the ruthenium-catalyzed ring-closing metathesis reaction


Gatti, M; Vieille-Petit, L; Luan, X; Mariz, R; Drinkel, E; Linden, A; Dorta, R (2009). Impact of NHC ligand conformation and solvent concentration on the ruthenium-catalyzed ring-closing metathesis reaction. Journal of the American Chemical Society, 131(27):9498-9499.

Abstract

Two saturated N-heterocyclic carbene ligands with substituted naphthyl side chains were used for the preparation of Blechert-type ruthenium metathesis precatalysts. The resulting conformers of the complexes were separated and unambiguously assigned by X-ray diffraction studies. All new complexes were compared in terms of activity to the original, SIMes-derived Blechert catalyst and were shown to be superior. A study on the impact of solvent concentration in RCM reactions using the most active of these new catalysts ultimately led to the ring closing of a variety of substrates at very low catalyst loadings.

Abstract

Two saturated N-heterocyclic carbene ligands with substituted naphthyl side chains were used for the preparation of Blechert-type ruthenium metathesis precatalysts. The resulting conformers of the complexes were separated and unambiguously assigned by X-ray diffraction studies. All new complexes were compared in terms of activity to the original, SIMes-derived Blechert catalyst and were shown to be superior. A study on the impact of solvent concentration in RCM reactions using the most active of these new catalysts ultimately led to the ring closing of a variety of substrates at very low catalyst loadings.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2009
Deposited On:18 Feb 2010 18:25
Last Modified:18 Apr 2018 11:40
Publisher:American Chemical Society
ISSN:0002-7863
Funders:Alfred Werner Foundation, SNF, Roche Research Foundation, UZH
OA Status:Closed
Publisher DOI:https://doi.org/10.1021/ja903554v
PubMed ID:19534532
Project Information:
  • : Funder
  • : Grant ID
  • : Project TitleAlfred Werner Foundation
  • : FunderSNSF
  • : Grant ID
  • : Project TitleSNF
  • : Funder
  • : Grant ID
  • : Project TitleRoche Research Foundation
  • : Funder
  • : Grant ID
  • : Project TitleUZH

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