Stabilization of (trialkylphosphine)ruthenium alkylidene metathesis catalysts using phosphine exchange

Sarah L. Bolton; Joseph E. Williams; Michael B. Sponsler

doi:10.1021/om061098e

Stabilization of (trialkylphosphine)ruthenium alkylidene metathesis catalysts using phosphine exchange

Sarah L. Bolton, Joseph E. Williams, Michael B. Sponsler

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The second-generation Grubbs analogues (H₂IMes)-RuCl ₂(=CHPh)(PR₃) (R = Me, Bu) were essentially metathesisinactive and air-stable at room temperature but exhibited first-order metathesis with ethyl vinyl ether at elevated temperature. The PMe₃ complex underwent second-order ligand exchange with PBu₃, indicating different coordination mechanisms (dissociative vs associative) in the two reactions.

Original language	English (US)
Pages (from-to)	2485-2487
Number of pages	3
Journal	Organometallics
Volume	26
Issue number	10
DOIs	https://doi.org/10.1021/om061098e
State	Published - May 7 2007

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1021/om061098e

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title = "Stabilization of (trialkylphosphine)ruthenium alkylidene metathesis catalysts using phosphine exchange",

abstract = "The second-generation Grubbs analogues (H2IMes)-RuCl 2(=CHPh)(PR3) (R = Me, Bu) were essentially metathesisinactive and air-stable at room temperature but exhibited first-order metathesis with ethyl vinyl ether at elevated temperature. The PMe3 complex underwent second-order ligand exchange with PBu3, indicating different coordination mechanisms (dissociative vs associative) in the two reactions.",

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AU - Williams, Joseph E.

AU - Sponsler, Michael B.

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N2 - The second-generation Grubbs analogues (H2IMes)-RuCl 2(=CHPh)(PR3) (R = Me, Bu) were essentially metathesisinactive and air-stable at room temperature but exhibited first-order metathesis with ethyl vinyl ether at elevated temperature. The PMe3 complex underwent second-order ligand exchange with PBu3, indicating different coordination mechanisms (dissociative vs associative) in the two reactions.

AB - The second-generation Grubbs analogues (H2IMes)-RuCl 2(=CHPh)(PR3) (R = Me, Bu) were essentially metathesisinactive and air-stable at room temperature but exhibited first-order metathesis with ethyl vinyl ether at elevated temperature. The PMe3 complex underwent second-order ligand exchange with PBu3, indicating different coordination mechanisms (dissociative vs associative) in the two reactions.

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Stabilization of (trialkylphosphine)ruthenium alkylidene metathesis catalysts using phosphine exchange

Abstract

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