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Issue 10, 2002
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New approaches to high-activity transition-metal catalysts for carbon–carbon bond forming reactions. Rhenium-containing phosphorus donor ligands for palladium-catalyzed Suzuki cross-couplings

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Abstract

The rhenium complexes (η5-C5H5)Re(NO)(PPh3)((CH2)nPR2:) (n/R = 0/Ph, 0/t-Bu, 0/Me, 1/Ph, 1/t-Bu), which contain electron-rich and sterically congested phosphido moieties, give active catalysts for the title reaction; typical conditions (toluene, 60–100 °C): aryl bromide (1.0 equiv.), PhB(OH)2 (1.5 equiv.), K3PO4 (2.0 equiv.), Pd(OAc)2 (1 mol%), and a Re(CH2)nPR2: species or a 1∶2 [Re(CH2)nPR2H]+X/t-BuOK mixture (4 mol% rhenium).

Graphical abstract: New approaches to high-activity transition-metal catalysts for carbon–carbon bond forming reactions. Rhenium-containing phosphorus donor ligands for palladium-catalyzed Suzuki cross-couplings

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Publication details

The article was received on 11 Feb 2002, accepted on 03 Mar 2002 and first published on 18 Apr 2002


Article type: Communication
DOI: 10.1039/B201512A
Chem. Commun., 2002, 1046-1047

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    New approaches to high-activity transition-metal catalysts for carbon–carbon bond forming reactions. Rhenium-containing phosphorus donor ligands for palladium-catalyzed Suzuki cross-couplings

    S. Eichenseher, K. Kromm, O. Delacroix and J. A. Gladysz, Chem. Commun., 2002, 1046
    DOI: 10.1039/B201512A

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