Nitrogen–carbon and nitrogen–hydrogen bond formation by insertion of a diazoalkane into metal–carbon and metal–hydrogen bonds

Abstract
Diphenyldiazomethane reacts with [cp2ZrMe2] and [cp2Zr(H)(Cl)](cp =η5-C5H5) inserting zirconium–carbon and zirconium–hydrogen bonds; the resulting hydrazonido(1–)-type ligands are η2-N,N′-bonded to zirconium in [cp2Zr(Me)(Ph2CN–NMe)] and in [cp2Zr(Cl)(Ph2CN–NH)], respectively.