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 language | English |
---|---|
Pages (from-to) | 2130-2134 |
Number of pages | 5 |
Journal | Dalton Transactions |
Issue number | 12 |
DOIs | |
Publication status | Published - 2009 |
Keywords
- CARBON-MONOXIDE
- ALTERNATING COPOLYMERIZATION
- HOMOGENEOUS CATALYSIS
- PALLADIUM COMPLEXES
- MOLECULAR-DYNAMICS
- DENDRIMERS
- HYDROFORMYLATION
- PHOSPHINE
- ALKENES
- CORE