Ligand-metal cooperativity has emerged as a powerful tool in the design of new molecular, homogeneous catalysts. Often, the ligand platform in these catalysts serves to modify the electronic nature of the metal site; thereby providing a thermodynamic driving force for intimate reaction steps along a given catalytic cycle. Such changes in ligand field may be achieved by aromatization/dearomatization, protonation state changes and/or tautomerization. Recently, we have initiated studies of transition metal complexes supported by the 6,6'-dihydroxy terpyridine (dhtp) ligand. We have previously shown that ruthenium(II) complexes supported by the dhtp ligand promote transfer hydrogenation reactivity of alcohols, and in some cases in a chemoselective sense. Alternative stoichiometric transformations, which rely on the proton-dependent ligand field of the dhtp ligand, will be presented.

Design, synthesis, and ligand-metal reactivity of transition metal complexes supported by 6,6'-dihydroxy terpyridine

246th National Meeting (2013)

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