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Title: Mononuclear copper(ll) aspirinate or salicylate complexes with methylimidazoles as biomimetic catalysts for oxidative dealkylation of a hindered phenol, oxidation of catechol and their superoxide scavenging activities
Authors: Abuhijleh, A. Latif 
Keywords: Mononuclear copper(II) aspirinate Catecholase Oxidative dealkylation of phenol;Mononuclear copper(II) aspirinate;Catecholase;SOD mimics
Issue Date: 2011
Publisher: Inorganic Chemistry Communications
Abstract: Mononuclear complex bis(aspirinato) bis(2-methylimidazole) copper(II), Cu(asp)2 (2-MeIm)2 (1), has been synthesized and spectroscopically characterized. The biomimetic catalytic activities of this complex and our previously characterized complexes, Cu(asp)2 (1,2-MeIm)2 (2), Cu(Hsal)2 (1,2-MeIm)2 (3), and Cu(sal)(2- MeIm)3, (4) [H2sal= salicylic acid and MeIm=methylimidazole], for the oxidation of 3,5-di-tert butylcatechol to the corresponding o-quinone and the oxidative dealkylation of 2,4,6-tri-tert-butylphenol to 2,6-di-tert-butyl-1,4-benzoquinone and 4,6-di-tert-butyl-1,2-benzoquinone as the main products are reported. Complexes 1 and 2 are found to be potent SOD mimics and their SOD activities are compared with those obtained previously for complexes 3 and 4.
DOI: 10.1016/j.inoche.2011.02.029
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