Tridentate κ 3 - P , P , C iridium complexes: influence of ligand saturation on intramolecular C-H bond activation.

Whereas κ 3 - P , C , P -based donor ligands are ubiquitous across synthetic chemistry, related unsymmetric systems having κ 3 - P , P , C -coordination are comparatively rare. In this contribution, we expose a new κ 3 - P , P , C ligand system, bearing a C3-anionic linker and its coordination chemistry with iridium. The title ligand has been coordinated in saturated and unsaturated forms. The degree of ligand saturation affected an onward (and unusual) oxidative rearrangement reaction.