Synthesis and Characterization of Bora(Amino)Silylene‐Coordinated Cu(I) Metallacycle
Asif Husain, Bhupendra Goswami, Akhil K. Singh, Ravi YadavABSTRACT
We report a bora(amino)silylene‐coordinated copper metallacycle [{LSi(NDipp(BPin))‐Cu‐Si(N t BuC(H)PhN t Bu)(NDipp(BPin))}] ( 2 ) (L = PhC(N t Bu) 2 ). Complex 2 was isolated during attempts to prepare a silylene‐coordinated copper hydride. Reaction of a (bis)silylene‐copper‐ tert ‐butoxide intermediate with pinacolborane resulted in the ligand transformation via B─H bond activation and the transfer of a hydrogen atom to the ligand backbone. The complex 2 was characterized by multinuclear NMR spectroscopy and single‐crystal x‐ray diffraction studies. Preliminary theoretical calculations were performed to suggest a possible reaction pathway for the formation of complex 2 .