The reaction of [Ni(acac)2] with triethoxysilane in the presence of PPh3: a new method for synthesis of [Ni(acac)Et(PPh3)]

Abstract

The reaction of [Ni(acac)₂] with triethoxysilane in the presence of PPh₃ is examined under oxygen-free conditions, permitting isolation of [Ni(acac)Et(PPh₃)]1 formed by elimination of one acac ligand (as protonated and hydrosilylated product) from the nickel complex with its simultaneous silylation which is followed by C–O bond cleavage in triethoxysilyl ligand via a mechanism involving transfer of an ethyl group to Ni with elimination of pentaethoxyhydrodisiloxane in the excess of triethoxysilane.