TY - JOUR
T1 - Efficient Hydroformylation in Dense Carbon Dioxide using Phosphorus Ligands without Perfluoroalkyl Substituents
AU - Koeken, Ard C.J.
AU - Benes, Nieck E.
AU - van den Broeke, Leo J.P.
AU - Keurentjes, Jos T.F.
PY - 2009
Y1 - 2009
N2 - Rhodium catalysts modified with triphenylphosphine, triphenyl phosphite, and tris(2,4-di-tert-butylphenyl) phosphite have been evaluated for their performance in the hydroformylation of 1-octene using carbon dioxide as the solvent. It is demonstrated that these catalysts are very efficient for the hydroformylation in carbon dioxide, although they are not designed for use in this medium. In particular, the catalyst prepared in situ from dicarbonyl(2,4-pentanedione)rhodium(I) and tris(2,4-di-tert-butyl-phenyl) phosphite gave rise to an initial turnover frequency in excess of 3×104 molaldehyde molRh h-1. Such a reaction rate is unprecedented for hydroformylation in supercritical carbon dioxide-rich reaction mixtures
AB - Rhodium catalysts modified with triphenylphosphine, triphenyl phosphite, and tris(2,4-di-tert-butylphenyl) phosphite have been evaluated for their performance in the hydroformylation of 1-octene using carbon dioxide as the solvent. It is demonstrated that these catalysts are very efficient for the hydroformylation in carbon dioxide, although they are not designed for use in this medium. In particular, the catalyst prepared in situ from dicarbonyl(2,4-pentanedione)rhodium(I) and tris(2,4-di-tert-butyl-phenyl) phosphite gave rise to an initial turnover frequency in excess of 3×104 molaldehyde molRh h-1. Such a reaction rate is unprecedented for hydroformylation in supercritical carbon dioxide-rich reaction mixtures
KW - 2023 OA procedure
U2 - 10.1002/adsc.200900008
DO - 10.1002/adsc.200900008
M3 - Article
VL - 351
SP - 1442
EP - 1450
JO - Advanced synthesis & catalysis
JF - Advanced synthesis & catalysis
SN - 1615-4150
IS - 9
ER -