The reaction of 2,6-diisopropylaniline-based bis-imine ligands (4, 9) with M(CH2Ph)4 (M = Hf, Zr) led to
formation of novel imino−amido tribenzyl complexes via
migratory insertion of a benzyl group into a CN bond. Imino−amido complexes were found to undergo unprecedented dibenzyl
elimination to form ene−diamido complexes. Imino−amido
complexes were found to be active ethylene polymerization
catalysts.
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