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Issue 24, 2006
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Fluorous phase-transfer activation of catalysts: application of a new rate-enhancement strategy to alkene metathesis

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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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Publication details

The article was received on 17 Feb 2006, accepted on 25 Apr 2006 and first published on 17 May 2006


Article type: Communication
DOI: 10.1039/B602428A
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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