Polymer producing palladium complexes of unidentate phosphines in the methoxycarbonylation of ethene.
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.
Smith
Graeme
G
EaStCHEM, School of Chemistry, University of St. Andrews, St. Andrews, Fife, UKKY16 9ST.
Vautravers
Nicolas R
NR
Cole-Hamilton
David J
DJ
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*
D005030:Ethylenes; D008024:Ligands; D008698:Mesylates; D009942:Organometallic Compounds; D010720:Phosphines; D011108:Polymers; C045880:methanesulfonic acid; D010165:Palladium; C036216:ethylene; D000432:Methanol