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Vol. 30 No. 10 (2018): Vol 30 Issue 10, 2018

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C-C Cross-Coupling Reactions by Palladium on Barium and Potassium Polyoxotungstate Supports

https://doi.org/10.14233/ajchem.2018.21508
I. Karume
Department of Chemistry, Makerere University, P.O. Box 7062 Kampala, Uganda
E. Tebandeke
Department of Chemistry, Makerere University, P.O. Box 7062 Kampala, Uganda
J. Mbabazi
Department of Chemistry, Makerere University, P.O. Box 7062 Kampala, Uganda
H. Ssekaalo
Department of Chemistry, Makerere University, P.O. Box 7062 Kampala, Uganda
O.F. Wendt
Centre for Analysis and Synthesis, Lund University, P.O. Box 124 Lund, Sweden

Corresponding Author(s) : I. Karume

ikarume@cns.mak.ac.ug

Asian Journal of Chemistry, Vol. 30 No. 10 (2018): Vol 30 Issue 10, 2018

Abstract

A heterogeneous catalyst system for Suzuki and Heck coupling reactions was developed using polyoxometalates as supports for palladium. The catalyst system was synthesized in a one step process using sodium phosphotungstate and palladium acetate. We used the supported catalyst in organic media without the need for special ligands. Substantial activity was observed after several recycles. The catalyst showed high product selectivity with yields up to > 95 % in both Suzuki and Heck reactions.

Keywords

Suzuki coupling Heck coupling Polyoxometalate Heterogeneous Palladium
Karume, I., Tebandeke, E., Mbabazi, J., Ssekaalo, H., & Wendt, O. (2018). C-C Cross-Coupling Reactions by Palladium on Barium and Potassium Polyoxotungstate Supports. Asian Journal of Chemistry, 30(10), 2357–2360. https://doi.org/10.14233/ajchem.2018.21508
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