Latent Ruthenium Olefin Metathesis Catalysts That Contain an N-Heterocyclic Carbene Ligand

Ung, Thay and Hejl, Andrew and Grubbs, Robert H. and Schrodi, Yann (2004) Latent Ruthenium Olefin Metathesis Catalysts That Contain an N-Heterocyclic Carbene Ligand. Organometallics, 23 (23). pp. 5399-5401. ISSN 0276-7333. doi:10.1021/om0493210. https://resolver.caltech.edu/CaltechAUTHORS:20170308-141601424

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Abstract

A new N-heterocyclic carbene containing olefin metathesis catalyst, (sIMes)(Cl)_2Ru(CH(CH_2)_2-C,N-2-C_5H_4N) (4a), was synthesized from (sIMes)(PCy_3)(Cl)_2RuCHPh (1) or (sIMes)(py)_2(Cl)_2RuCHPh (3). When heated at 40 °C in dichloromethane, 4a is slowly converted to its isomer 4b. The X-ray structures of 4a and 4b show that the NHC and pyridine ligands are trans in 4a and cis in 4b. 4a is more latent than 1 and 4b much more latent than 4a in ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP).

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Article

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URL	URL Type	Description
http://dx.doi.org/10.1021/om0493210	DOI	Article
http://pubs.acs.org/doi/abs/10.1021/om0493210	Publisher	Article
http://pubs.acs.org/doi/suppl/10.1021/om0493210	Publisher	Supporting Information

ORCID:

Author	ORCID
Grubbs, Robert H.	0000-0002-0057-7817

Additional Information:

© 2004 American Chemical Society. Received 31 August 2004. Published online 13 October 2004. Published in print 1 November 2004. We thank Larry Henling and Dr. Michael Day (Caltech) for the X-ray crystallographic analysis and Jeanie Conner (Materia, Inc.) for measuring the ROMP exotherms.

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DOI:

10.1021/om0493210

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CaltechAUTHORS:20170308-141601424

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https://resolver.caltech.edu/CaltechAUTHORS:20170308-141601424

Official Citation:

Latent Ruthenium Olefin Metathesis Catalysts That Contain an N-Heterocyclic Carbene Ligand Thay Ung, Andrew Hejl, Robert H. Grubbs, and Yann Schrodi Organometallics 2004 23 (23), 5399-5401 DOI: 10.1021/om0493210

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ID Code:

74920

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CaltechAUTHORS

Deposited By:

Ruth Sustaita

Deposited On:

08 Mar 2017 22:34

Last Modified:

15 Nov 2021 16:29

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