Phosphorus-nitrogen-phosphorus ligands: cooperative effects between nitrogen and phosphorus substituents on catalytic activity.
A new generation of PNP compounds bearing different diarylphosphine groups were prepared and used as ligands in palladium-catalysed Suzuki cross-coupling reactions. Rates of oxidative addition of iodobenzene to (PNP)Pd[0] complexes were measured using UV spectroscopy. Synergistic effects between the N- and P- substituents were identified and correlated in redox and catalytic chemistry.
Parisel
Sébastien L
SL
Department of Chemistry, King's College London, Strand, London, UK WC2R 2LS.
Moorcroft
Neil D
ND
Jutand
Anny
A
Aldous
David J
DJ
Hii
King Kuok
KK