Highly Selective Cobalt-Catalyzed Hydrovinylation of Styrene
2009 (English)In: Advanced Synthesis and Catalysis, ISSN 1615-4150, E-ISSN 1615-4169, Vol. 351, no 13, 2199-2208 p.Article in journal (Refereed) Published
Phosphine complexes of cobalt halide salts activated by diethylaluminum chloride are shown to yield highly active catalysts in the hydrovinylation of styrene, with unprecedented high selectivity to the desired product 3-phenyl-1-butene (3P1B). Double-bond isomerization, a common problem in codimerization reactions, only occurs after full conversion with these catalyst systems, even at elevated temperature. The most active catalysts are based on cobalt halide species combined with either C-1- or C-2-bridged diphosphines, heterodonor P,N or P,O ligands, flexible bidentate phosphine ligands or monodentate phosphine ligands. Kinetic investigations show an order > 1 in catalyst, which indicates either the involvement of dinuclear species in the catalytic cycle or partial catalyst decomposition via a bimolecular pathway.
Place, publisher, year, edition, pages
2009. Vol. 351, no 13, 2199-2208 p.
IdentifiersURN: urn:nbn:se:kth:diva-18830DOI: 10.1002/adsc.200900261ISI: 000270404700021ScopusID: 2-s2.0-70349420967OAI: oai:DiVA.org:kth-18830DiVA: diva2:336877
QC 201005252010-08-052010-08-052011-02-07Bibliographically approved