Phosphorus–nitrogen–phosphorus ligands: cooperative effects between nitrogen and phosphorus substituents on catalytic activity
作者:Sébastien L. Parisel、Neil D. Moorcroft、Anny Jutand、David J. Aldous、King Kuok (Mimi) Hii
DOI:10.1039/b312702h
日期:——
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.