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Synthesis of Optically Active Polystyrene Catalyzed by Monophosphine Pd Complexes |
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| Authors: | Dr Matthieu Jouffroy Prof Dr Dominique Armspach Prof Dr Dominique Matt Prof Dr Kohtaro Osakada Dr Daisuke Takeuchi |
| Institution: | 1. Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, Japan;2. Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, Strasbourg cedex, France |
| Abstract: | Cationic PdII monophosphine complexes derived from α‐ and β‐cyclodextrins (CDs) promote the homopolymerization of styrene under carbon monoxide pressure. Although reversible CO coordination takes place under catalytic conditions according to 13C NMR studies with 13C‐enriched CO, both complexes catalyze the formation of CO‐free styrene polymers. These macromolecules display optical activity as a result of the presence of stereoregular sequences within the overall atactic polymer. |
| Keywords: | asymmetric synthesis cyclodextrins homogeneous catalysis palladium polymerization |