Hydrocarbon tridentate ligand

A related base-promoted C-H activation of benzene by Pt(II) was recently reported. With the tridentate monoanionic amido pineer ligand N3 , the triflate complex N3 Pt(OTf), depicted in Scheme 8 was shown to activate benzene in the presence of base (35). It was noted that the chloro complex N3 PtCl was not reactive under these conditions. The activity of the triflate complex again appears to result from the higher lability of triflate which can allow for coordination of the hydrocarbon. 

Extension of the tridentate catalysts to ruthenium through the use of pyridylbis(oxazoline)pyridine (py-box, 10) ligands gives (pybox)RuX2 (ethylene) where X = Cl or I. In hydrocarbon solvents at 25—60 C° at... 

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