Late-stage ligand functionalization via the Staudinger reaction using phosphine-appended 2,2'-bipyridine.
Deeb TaherJessica R WilsonGrayson RitchMatthias ZellerNathaniel K SzymczakPublished in: Chemical communications (Cambridge, England) (2021)
The ability of a phosphine-appended-2,2'-bipyridine ligand ((Ph2P)2bpy) to serve as a platform for late-stage ligand modifications was evaluated using tetrahedral (Ph2P)2bpyFeCl2. We employed a post-metalation Staudinger reaction to install a series of functionalized arenes, including those containing Brønsted and Lewis acidic groups. This reaction sequence represents a versatile strategy to both tune the ligand donor properties as well as directly incorporate appended functionality.