52. Structure and Reactivity of New Phosphine Ligands Containing the Hemi-Labile Sulfone Moiety
Dalton Transactions, 2006, 2251 - 2262
DOI: 10.1039/b513390d
Chapman, C. J.; Frost, C. G.; Mahon, M. F.
New heterofunctional phosphine ligands have been synthesised, incorporating the substitutionally labile sulfone and sulfonamide moieties as chelating groups, which display activity in the palladium-catalysed Suzuki and amination cross-coupling reactions. Single-crystal X-ray diffraction studies of the complexes formed with [Pd(µ-Cl)(dmba)] (dmba-H = N,N-dimethylbenzylamine) highlight the coordinating nature of these ligands; showing the formation of a bis chelate complex through a six-membered Pd–P–C–C–S–O ring with the sulfonamide class of ligands.