Synthesis of new derivatized pyrazole based ligands and their catecholase activity studies |
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Authors: | Abdelkhalek Zerrouki Rachid Touzani Sghir El Kadiri |
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Affiliation: | 1. Laboratoire de Chimie Appliquée et Environnement – URAC 18, Département de Chimie, Faculté des Sciences, Université Mohamed Premier, BP: 524, 60 000 Oujda, Morocco;2. Faculté Pluridisciplinaire de Nador, Université Mohamed Premier, BP: 300, Selouane 62700, Nador, Morocco |
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Abstract: | A synthesis of three new tripodal ligands: 3-[bis-(3,5-dimethyl-pyrazol-1-ylmethyl)-amino]-propan-1-ol L1, 3-[bis-(5-methyl-3-carbomethoxy-pyrazol-1-ylmethyl)-amino]-propan-1-ol, L2 and 3-[bis-(5-methyl-3-carboethoxy-pyrazol-1-ylmethyl)-amino]-propan-1-ol L3 is reported. The in situ-generated copper(II) complexes of three new compounds (L1–L3) were examined for their catalytic activities and were found to catalyse the oxidation reaction of catechol to o-quinone with the atmospheric dioxygen. These activities depend on the nature of the ligand and the copper salts. |
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Keywords: | Nitrogen ligand Pyrazole Oxidation reaction Catecholase activity and copper(II) salts |
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