Palladium-catalyzed copolymerization of ethene with acrolein dimethyl acetal: catalyst action and deactivation.

@article{Li2004PalladiumcatalyzedCO,
  title={Palladium-catalyzed copolymerization of ethene with acrolein dimethyl acetal: catalyst action and deactivation.},
  author={Weidong Li and Xiaochun Zhang and Auke Meetsma and Bart Hessen},
  journal={Journal of the American Chemical Society},
  year={2004},
  volume={126 39},
  pages={12246-7}
}
Acrolein dimethyl acetal (ADMA) can be copolymerized with ethene using a cationic alpha-diimine palladium chelate catalyst to yield branched copolymers. Catalyst deactivation occurs via methanol elimination to give an inert eta3-1-methoxyallyl palladium species. This process can be retarded by the addition of an aliquot of methanol to the reaction mixture, increasing overall catalyst productivity. 

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