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Highly Active Metathesis Catalysts Generated In Situ from Inexpensive and Air-Stable Precursors

Louie, Janis and Grubbs, Robert H. (2001) Highly Active Metathesis Catalysts Generated In Situ from Inexpensive and Air-Stable Precursors. Angewandte Chemie, 113 (1). pp. 253-255. ISSN 0044-8249. https://resolver.caltech.edu/CaltechAUTHORS:20180507-110608936

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Abstract

The preparation of well‐defined ruthenium alkylidene complexes bearing N‐heterocyclic carbene ligands such as 1,3‐dimesitylimidazol‐2‐ylidene (1) and 4,5‐dihydroimidazol‐2‐ylidene (2) have led to catalysts (such as 3 and 4; see Figure 1) which are highly active in ring‐closing metathesis (RCM), cross metathesis (CM), and ring‐opening metathesis polymerization (ROMP).1 These catalysts show increased thermal stability and similar tolerance to oxygen and moisture when compared to their parent bisphosphane complexes, [(PCy_3)_2Cl_2Ru=CHPh] (5, Figure 1).2 Since all synthetic routes to catalysts 3 and 4 proceed through the transformation of a ruthenium bisphosphane carbene,3 a direct route through readily available starting materials is still desirable.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1002/1521-3757(20010105)113:1<253::AID-ANGE253>3.0.CO;2-Z DOIArticle
ORCID:
AuthorORCID
Grubbs, Robert H.0000-0002-0057-7817
Additional Information:© 2001 Wiley‐VCH Verlag GmbH, Weinheim, Fed. Rep. of Germany. Issue Online 04 January 2001; Version of Record online: 04 January 2001; Manuscript received: 28 August 2000. J.L. acknowledges the National Institute of Health for a postdoctoral fellowship. We thank Christopher W. Bielawski for helpful discussions.
Funders:
Funding AgencyGrant Number
NIH Postdoctoral FellowshipUNSPECIFIED
Subject Keywords:Carbene; Homogene Katalyse; Metathesen; Ruthenium; Vinylidenkomplexe
Issue or Number:1
Record Number:CaltechAUTHORS:20180507-110608936
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180507-110608936
Official Citation:Louie, J. and Grubbs, R. H. (2001), Highly Active Metathesis Catalysts Generated In Situ from Inexpensive and Air‐Stable Precursors. Angew. Chem., 113: 253-255. doi:10.1002/1521-3757(20010105)113:1<253::AID-ANGE253>3.0.CO;2-Z
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86244
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:07 May 2018 20:13
Last Modified:03 Oct 2019 19:41

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