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Core phosphine-functionalized amphiphilic nanogels as catalytic nanoreactors for aqueous biphasic hydroformylation

Lobry, Emeline and Cardozo Perez, Andrés Fernando and Barthe, Laurie and Blanco, Jean-François and Delmas, Henri and Chen, Si and Gayet, Florence and Zhang, Xuewei and Lansalot, Muriel and D’Agosto, Franck and Poli, Rinaldo and Manoury, Eric and Julcour-Lebigue, Carine Core phosphine-functionalized amphiphilic nanogels as catalytic nanoreactors for aqueous biphasic hydroformylation. (2016) Journal of Catalysis, 342. 164-172. ISSN 0021-9517

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Official URL: https://doi.org/10.1016/j.jcat.2016.07.023

Abstract

Amphiphilic phosphine-functionalized nanogel particles were synthesized by aqueous polymerization induced self-assembly insuring a well-defined architecture as well as a narrow size distribution (average diameter of ca. 90 nm in water). They were successfully applied as ligands for the biphasic hydroformylation of 1-octene catalyzed by rhodium, yielding TOFs in the 350–650 h-1 range and a linear to branched aldehyde ratio of 3.5. Embedding the phosphine ligands within a cross-linked structure did not strongly impede mass transfer toward the active centers, as proved by fast metal coordination and a catalytic activity tantamount to that of higher chain mobility micelles or core-cross-linked micelles that have phosphine moieties located on flexible linear arms. However, this extended cross-linking reduced particle swelling and transfer to the organic phase, affording a significantly lowered Rh loss. For all the architectures, a low functionalization degree was preferable to achieve high activity, the selectivity remaining essentially unchanged.

Item Type:Article
HAL Id:hal-01878788
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 Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
Laboratory name:
Funders:
Agence Nationale de la Recherche
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Deposited By: Carine JULCOUR LEBIGUE
Deposited On:21 Sep 2018 12:30

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