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Preparation of Polymer Supported Phosphine Ligands by Metal Catalyzed Living Radical Copolymerization and Their Application to Hydroformylation Catalysis

Cardozo Perez, Andrés Fernando and Manoury, Eric and Julcour-Lebigue, Carine and Blanco, Jean-François and Delmas, Henri and Gayet, Florence and Poli, Rinaldo Preparation of Polymer Supported Phosphine Ligands by Metal Catalyzed Living Radical Copolymerization and Their Application to Hydroformylation Catalysis. (2013) CHEMCATCHEM, vol. 5 (n° 5). pp. 1161-1169. ISSN 1867-3899

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Official URL: http://dx.doi.org/10.1002/cctc.201200446

Abstract

A series of well-defined polystyrene-supported tertiary phosphine ligands were prepared by copper-catalyzed atom transfer radical polymerization (ATRP), involving direct copolymerization of styrene and 4-diphenylphosphinostyrene (or 4-styryldiphenylphosphine, SDPP). Copolymerization of the two monomers at different molar ratios showed a decreasing level of control as the SDPP molar fraction (fSDPP) increased. A satisfactory level of control was achieved for fSDPP≤0.25 such that there was a constant concentration of growing “living chains”, and linear Mn growth with conversion and low dispersity. Copper-free polymers with different chain lengths were prepared and tested as polymeric ligands in the rhodium-catalyzed hydroformylation of 1-octene. The polymeric ligands yielded higher linear/branched selectivity and lower activity relative to PPh3 at the same P/Rh ratio. The selectivity increased slightly as a function of the polymer chain length.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (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)
Laboratory name:
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Deposited By: Andres fernando CARDOZO PEREZ
Deposited On:09 Oct 2013 08:47

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