350245-18-0Relevant articles and documents
Development of efficient and reusable diarylphosphinopolystyrene-supported palladium catalysts for C-C bond forming cross-coupling reactions
Schweizer, Stephane,Becht, Jean-Michel,Le Drian, Claude
, p. 1150 - 1158 (2007)
Short and versatile syntheses of reusable diarylphosphinopolystyrene- supported palladium catalysts 3a-j are described. The bis(o-tolyl)phosphino catalyst 3b is particularly efficient for the Suzuki and Sonogashira cross-couplings, whereas the bis(m-tolyl)phosphino catalyst 3c is the most active catalyst for Heck reactions. The couplings are performed under non-anhydrous reaction conditions and require only low amounts of supported palladium (0.5 mequivs. for Suzuki-Miyaura, 1.0 mequiv. for Sonogashira and 0.5 mequivs. for Heck reactions could be sufficient). Catalysts 3a-j are recovered by filtration and can be reused more than four times with no loss of efficiency.
Highly selective chromium-based ethylene trimerisation catalysts with bulky diphosphinoamine ligands
Blann, Kevin,Bollmann, Annette,Dixon, John T.,Hess, Fiona M.,Killian, Esna,Maumela, Hulisani,Morgan, David H.,Neveling, Arno,Otto, Stephanus,Overett, Matthew J.
, p. 620 - 621 (2007/10/03)
In situ prepared chromium catalysts containing bulky diphosphinoamine (PNP) ligands, upon activation with MAO, are extremely efficient catalysts for the trimerisation of ethylene to 1-hexene. The Royal Society of Chemistry 2005.