title: Polymer producing palladium complexes of unidentate phosphines in the methoxycarbonylation of ethene.
abstract: A wide range of unidentate phosphines have been studied as ligands for the palladium-catalysed methoxycarbonylation of ethene in the presence of methanesulfonic acid using methanol as the solvent. At high phosphine to Pd ratios, methyl propanoate is formed at a low rate. However, at P-Pd ratios of 4 : 1, some unidentate phosphines promote the formation of polyketone with moderate rates. Analysis of all the phosphines shows that good electron donating power, combined with small size, favours polyketone formation.
authors.affiliation: EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, UKKY16 9ST.
authors.forename: Graeme
authors.initials: G
authors.lastname: Smith
authors.forename: Nicolas R
authors.initials: NR
authors.lastname: Vautravers
authors.forename: David J
authors.initials: DJ
authors.lastname: Cole-Hamilton
mesh_terms: D002384:Catalysis; D005030:Ethylenes / Q000138:chemical synthesis* / Q000737:chemistry; D008024:Ligands; D008698:Mesylates / Q000737:chemistry; D000432:Methanol / Q000737:chemistry; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D005030:Ethylenes; D008024:Ligands; D008698:Mesylates; D009942:Organometallic Compounds; D010720:Phosphines; D011108:Polymers; C045880:methanesulfonic acid; D010165:Palladium; C036216:ethylene; D000432:Methanol