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Titanium Imido Complexes by Displacement of –SiMe3 and C–H Bond Activation in a TiIII Amido Complex, Promoted by a Cyclic (Alkyl)(Amino) Carbene (cAAC)

Published Web Location

https://doi.org/10.1002/ejic.201700295
Abstract

A strong σ-donating cyclic (alkyl)(amino) carbene (cAAC) triggers rearrangement of the silyl(aryl) amido ligand -N(SiMe3)Dipp (Dipp = 2,6-diisopropylphenyl) in the coordination sphere of titanium(III) to afford a novel zwitterionic titanium imido complex with a TiCH2SiMe2[cAAC] linkage. Reduction of this species produces a new DippN=Ti imido complex containing a cAAC-centered radical species, characterized by single crystal diffraction analysis and electron paramagnetic resonance spectroscopy.

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