Splitting of dihydrogen by five-membered zirconacycloallenoids: a novel pathway to conjugated diene zirconocene complexes†
Abstract
The five-membered zirconacycloallenoids 2 react rapidly with dihydrogen under mild conditions to yield the corresponding (s-cis-conjugated diene)zirconocenes 3. The reaction involves splitting of the H2 molecule between the metal center and a ligand carbon atom.