3 years ago

Ligand-Induced Tuning of the Oxidase Activity of μ-Hydroxidodimanganese(III) Complexes Using 3,5-Di-tert-butylcatechol as the Substrate: Isolation and Characterization of Products Involving an Oxidized Dioxolene Moiety

Ligand-Induced Tuning of the Oxidase Activity of μ-Hydroxidodimanganese(III) Complexes Using 3,5-Di-tert-butylcatechol as the Substrate: Isolation and Characterization of Products Involving an Oxidized Dioxolene Moiety
Akira Endo, Dhrubajyoti Mondal, Atanu Rana, Muktimoy Chaudhury, Mithun Chandra Majee, Sanchita Kundu
Two-electron versus four-electron reduction of dioxygen by a series of monohydroxido-bridged dimanganese(III) complexes (A) in the presence of 3,5-di-tert-butylcatecholate (H2DBC) as an electron source is fine-tuned by the secondary coordination environment around the metal center, leading to semiquinonato (B) and quinonato (C) complexes, respectively. The latter undergoes a Michael-type nucleophilic 1,4-addition reaction with the solvent methanol to generate an unusual type of oxidized dioxolene moiety.

Publisher URL: http://dx.doi.org/10.1021/acs.inorgchem.7b00147

DOI: 10.1021/acs.inorgchem.7b00147

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