Ferrocene-based phosphonite–phosphine ligands, Pd and Rh complexes

A variety of ferrocene-based 1-phosphonite-1′-phosphine ligands were prepared via 1-dichlorophosphino-1′-diphenylphosphinoferrocene from anionic ring opening of 1-phenyl-1-phospha-[1]ferrocenophane. The corresponding palladium and rhodium complexes have also been prepared and tested, respectively, in Heck and hydroformylation reactions.