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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