Analytical applications of crown ethers : III. Extraction and determination of nitrophenol isomers |
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| Authors: | I N Papadoyannis Th A Kouimtzis G S Vasilikiotis |
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| Institution: | Laboratory of Analytical Chemistry, University of Thessaloniki, Thessaloniki, Greece |
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| Abstract: | The oxidation of aldehydes by dicyclohexyl-18-crown-6-potassium permangante complex is presented. Results obtained by this procedure showed that the presence of crown ether (DCC) and the catalyst play an important role in the oxidation of the aldehydes. The stoichiometry found corresponds to 2 μeq of permanganate per 1 μmol of aldehydes in all cases. Alcohols and ketones are not oxidized. Finally, a method for quantitative evaluation of aldehydes is proposed. |
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