Issue 24, 2006
From the journal:

Chemical Communications

Fluorous phase-transfer activation of catalysts: application of a new rate-enhancement strategy to alkene metathesis†

Rosenildo Corrêa da Costaa  and  J. A. Gladysz*a  

* Corresponding authors

a Institut für Organische Chemie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Henkestraße 42, 91054 Erlangen, Germany

Abstract

Reactions of the bis(pyridine) complex (H2IMes)(Py)2(Cl)2Ru([double bond, length as m-dash]CHPh) and fluorous phosphines P(CH2CH2Rfn)3 (n = a, 6; b, 8; c, 10; Rfn = (CF2)n–1CF3) give (H2IMes)(P(CH2CH2Rfn)3)(Cl)2Ru([double bond, length as m-dash]CHPh) (2a–c, 64–73%), which are analogs of Grubbs' second generation catalyst and effective alkene metathesis catalysts under organic monophasic and fluorous/organic biphasic conditions. The latter give rate accelerations, which are believed to arise from phase transfer of the dissociated fluorous phosphine.

Graphical abstract: Fluorous phase-transfer activation of catalysts: application of a new rate-enhancement strategy to alkene metathesis

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Article information

DOI
https://doi.org/10.1039/B602428A
Article type
Communication
Submitted
17 Feb 2006
Accepted
25 Apr 2006
First published
17 May 2006

Chem. Commun., 2006, 2619-2621

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Fluorous phase-transfer activation of catalysts: application of a new rate-enhancement strategy to alkene metathesis

R. Corrêa da Costa and J. A. Gladysz, Chem. Commun., 2006, 2619 DOI: 10.1039/B602428A

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