Titanium alkylidyne complexes

Related C-H activations by 1,2-additions across metal-ligand bonds have also been reported with unusual group 4 alkylidyne complexes. - As shown in Equation 6.58, a titanium(IV) trimethylsilylmethyl benzylidene complex eliminates tetramethylsilane to generate a Ti(IV) alkylidyne complex. This complex then reacts with benzene to add the arene C-H bond across the metal-alkylidyne unit to form an aryl benzylidene complex. 

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