The palladium catalysed hydroesterification of linear alkenes to obtain carboxylic esters in supercritical carbon dioxide
is studied for the first time. Palladium complexes with phosphines containing –CF
3 groups are used as catalyst precursors. For 1-hexene, conversions into the corresponding methyl esters up to 67% were obtained
using [PdCl
2(PhCN)
2]/P(3,5-CF
3C
6H
4)
3.
Keywords Homogeneous catalysis - Hydroesterification - Alcoxycarbonylation - Carbonylation - Palladium - Supercritical carbon dioxide