Abstract
[Cp*Ir(Cl)(bpym)]+ (bpym = 2,2'-bipyrimidine) and [Cp*Ir(Cl)(bpy)]+ are the 1st examples of Ir based catalysts for the aerobic oxidn. of alcs. The mechanism for aerobic oxidn. of aliph. alcs. to aldehydes is discussed; the catalytic cycle proceeds via the acidic hydrides [Cp*Ir(H)(bpym)]+ or [Cp*Ir(H)(bpy)]+. Deprotonation of the hydride leads to a highly oxygen-sensitive IrI species that regenerate the IrIII complexes upon oxidn. with dioxygen. [on SciFinder(R)]
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