Formate-driven catalysis and mechanism of an iridium-copper complex for selective aerobic oxidation of aromatic olefins in water.

ABSTRACT: A hetero-dinuclear Ir^III-Cu^II complex with two adjacent sites was employed as a catalyst for the aerobic oxidation of aromatic olefins driven by formate in water. An Ir^III-H intermediate, generated through formate dehydrogenation, was revealed to activate terminal aromatic olefins to afford an Ir-alkyl species, and the process was promoted by a hydrophobic [Ir^III-H]-[substrate aromatic ring] interaction in water. The Ir-alkyl species subsequently reacted with dioxygen to yield corresponding methyl ketones and was promoted by the presence of the Cu^II moiety under acidic conditions. The Ir^III-Cu^II complex exhibited cooperative catalysis in the selective aerobic oxidation of olefins to corresponding methyl ketones, a

SUBMITTER: Shimoyama Y 

PROVIDER: S-EPMC8179673 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature