C-C Bond Formation of Carbonyl Compounds Catalyzed by a Mononuclear Copper(II)-Superoxide Complex

摘要

Mononuclear copper(II)-superoxide complexes generated by the reaction of copper(I) complexes and dioxygen (O2) are the key reactive intermediates in biological and abiological oxidation reactions. So far, some copper(II) end-on or side-on superoxide complexes have been characterized and their reactivity toward substrates has been examined.1 In general, the superoxide complexes supported by neutral ligands showed electrophilic reactivity such as hydrogen atom abstraction (HAT) and oxygen atom transfer (OAT), whereas a one with an anionic ligand exhibited nucleophilic reactivity.