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Aqueous phase homogeneous catalysis using core–shell nanoreactors: Application to rhodium-catalyzed hydroformylation of 1-octene

Cardozo Perez, Andrés Fernando and Julcour-Lebigue, Carine and Barthe, Laurie and Blanco, Jean-François and Chen, Si and Gayet, Florence and Manoury, Eric and Zhang, Xuewei and Lansalot, Muriel and Charleux, Bernadette and D'Agosto, Franck and Poli, Rinaldo and Delmas, Henri Aqueous phase homogeneous catalysis using core–shell nanoreactors: Application to rhodium-catalyzed hydroformylation of 1-octene. (2015) Journal of Catalysis, vol. 324. pp. 1-8. ISSN 0021-9517

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Official URL: http://dx.doi.org/10.1016/j.jcat.2015.01.009

Abstract

High catalytic activity (TurnOver Frequencies up to 700 h-1) was achieved using new triphenylphosphine-functionalized core cross-linked micelles, TPP@CCM, as nanoreactors and [Rh(CO)2(acac)] as catalyst precursor for the aqueous biphasic hydroformylation of 1-octene. While the hydrophobic core of the polymer offers an adequate environment for the catalytic reaction, its hydrophilic shell confines the catalyst into the aqueous phase and prevents extensive leaching towards the substrate/product phase. Selectivity is better than that of the homogeneous reaction catalyzed by the Rh/PPh3 system, with minor isomerization and linear to branched aldehyde ratios (l/b) between 3 and 6. Various operating parameters, such as catalyst/ligand concentration, temperature and P/Rh ratio, were varied and proved that these nanoreactors do not suffer from significant mass transfer limitations. The effect of the nanoreactor hydrophobic core size and degree of functionalization on activity and on l/b regioselectivity has also been investigated. The possible causes of catalyst leaching are discussed.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of Catalysis website : http://www.sciencedirect.com/science/journal/00219517
HAL Id:hal-01141908
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Supérieure de Chimie Physique et Electronique de Lyon (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Institut universitaire de France - IUF (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
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Deposited By: Laurie BARTHE
Deposited On:14 Apr 2015 08:30

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