Reactant for:Preparation of macrocyclic tridentate ferrocenylphosphine ligandsPreparation of phosphorus-bridged ferrocenophane with syn and anti conformationsReaction with phenyllithium and chlorophosphine to give ferrocenediyl ligand and its rhodium complex catalyst for selective hydroformylation of alkenesRing-opening reactions via ring slippagePreparation of palladium chloro (ferrocene-bridged)phosphine-phosphonite complex for catalysis of Heck reaction of iodobenzene with Me acrylate