Diphenylphosphine containing macromolecules in the methoxycarbonylation of ethene: the effect of macromolecular architecture on the selectivity of the reaction

Nicolas R. Vautravers, David John Cole-Hamilton

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10 Citations (Scopus)

Abstract

Various polyhedral oligomeric silsesquioxanes containing diphenylphosphine moieties at their periphery have been used in the methoxycarbonylation of ethene. Those with a -CH2CH2-spacer between the silicon and the phosphorus atoms (G0-8ethylPPh(2) and G1-16ethylPPh(2)) only produce methyl propanoate whilst a similar macromolecule with a -CH2-spacer between Si and P (G1-16methylPPh(2)) gives only copolymer. The effect of the molecular architecture is discussed in comparison with the selectivities observed when using small molecule analogues.

Original languageEnglish
Pages (from-to)2130-2134
Number of pages5
JournalDalton Transactions
Issue number12
DOIs
Publication statusPublished - 2009

Keywords

  • CARBON-MONOXIDE
  • ALTERNATING COPOLYMERIZATION
  • HOMOGENEOUS CATALYSIS
  • PALLADIUM COMPLEXES
  • MOLECULAR-DYNAMICS
  • DENDRIMERS
  • HYDROFORMYLATION
  • PHOSPHINE
  • ALKENES
  • CORE

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