Related Experiment Video
Updated: Aug 8, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
Structure and reactivity of new phosphine ligands containing the hemi-labile sulfone moiety
Christopher J Chapman1, Christopher G Frost, Mary F Mahon
1Department of Chemistry, University of Bath, Claverton down, Bath, UK BA2 7AY.
Abstract:
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(mu-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.
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