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Aerobic and Biomimetic Activation of C-H Bonds of Phenols Catalysed by Copper-Amine Complexes

Abstract : Various copper complexes were prepared (CuCl(phen), CuCl(bipy), CuCl(neocu), CuCl(BPA), [CuCl(OH)(TMEDA)]2) and tested in aerobic room temperature oxidation of p-cresol. The complexe [CuCl(OH)(TMEDA)]2 was found to be the more efficient and was used in o,o and p,p coupling of various phenols and in the formation of quinones under aerobic conditions. The dimerization of substituted naphthols was also investigated. This C-H activation with formation of one CC bond and one harmless molecule of water with air as oxidant at room temperature represents a biomimetic model of enzyme Laccase.
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Preprints, Working Papers, ...
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https://hal-normandie-univ.archives-ouvertes.fr/hal-03670189
Contributor : Didier Villemin Connect in order to contact the contributor
Submitted on : Thursday, May 19, 2022 - 2:58:18 PM
Last modification on : Tuesday, June 14, 2022 - 11:08:40 AM

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Didier Villemin, Mebrouka Dekhici, Nathalie Bar, Nawel Cheikh. Aerobic and Biomimetic Activation of C-H Bonds of Phenols Catalysed by Copper-Amine Complexes. 2022. ⟨hal-03670189⟩

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