Novel single-component palladium(II) catalysts for the alternating CO/propene copolymerization reaction

Dieter Meinhard, Frank Hollmann, Wolfgang Huhn, Ulf Thewalt, Marttii Klinga, Bernhard Rieger

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A synthetic route for the preparation of 1,3-bis[diphenylphosphino]propane- 1n2,5η1-6-ethoxy-exo-5,6- dihydrodicyclopentadienylpalladium(II) hexafluoroantimonate (3a) and the tetrafluoroborate derivative (3b) is described. 3a was characterized by single-crystal X-ray structure analysis. Both species are active for the CO/ α-olefin copolymerization reaction without any additional activator or cocatalyst. The copolymerization experiments performed with this single-component catalyst (SCC) produced CO / α-olefin copolymers with similar properties compared to those resulting from the well-known di-acetonitrile-1,3-[bis(diphenylphosphino)propane-Pd(II)-bis(tetrafluoroborate) complex activated with methanol. An increase of activity and molecular weight has been achieved through polymerization in liquid propene.

Original languageEnglish
Pages (from-to)5637-5639
Number of pages3
JournalOrganometallics
Volume23
Issue number23
DOIs
StatePublished - 8 Nov 2004
Externally publishedYes

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