Anodic oxidation of p-But-calix[4]arene-(OH)2-(OCH2CONEt2)2. Electrogeneration of a calixdiquinone in dichloromethane |
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| Institution: | 1. Dpto. Ingeniería Química Industrial y M. A., Universidad Politécnica de Madrid, José Gutierrez Abascal, 2, 28006 Madrid, Spain;2. Dpto. Química Inorgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain |
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| Abstract: | The electrochemical oxidation of p-But-calix4]arene-(OH)2-(OCH2CONEt2)2 1 has been investigated for the first time and was shown to result in the formation of the corresponding diquinone 3. The reaction proceeds via two successive two-electron irreversible oxidation steps both governed by an ECE mechanism. Alkali cations recognition can be realized by exhaustive oxidation of 1 in the presence of alkali salts. |
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