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Synthesis and electrochemical behavior of inclusion complexes based on β-cyclodextrin and alkylaromatic compounds: Electrochemical carboxylation of the β-cyclodextrin-1-(4-isobutylphenyl)ethylchloride inclusion complex on a glassy-carbon cathode in anhydrous dimethylformamide

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Abstract

Inclusion complexes of β-cyclodextrin with alkylaromatic compounds β-cyclodextrin-1-(4-isobutylphenyl)ethylchloride in the “guest-host” molar ratio of 1 : 2 and β-cyclodextrin-methyl-(4-isobutylphenyl)ketone in the “guest-host” molar ratio of 1 : 1, are synthesized, isolated, and characterized. It is shown that preparative electrocarboxylation of the inclusion complex β-cyclodextrin-1-(4-isobutylphenyl)ethylchloride on a glassy-carbon cathode with a dissolving magnesium anode in dimethylformamide affords S-forms of 2-(4-isobutylphenyl)propionic acid (S-Ibuprofen) in a high enantiomeric excess (97%). In addition to the acid, a dimer and a hydride form from the corresponding intermediates.

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Original Russian Text © A.A. Stepanov, M.K. Grachev, G.I. Kurochkina, S.V. Sipin, V.A. Grinberg, 2007, published in Elektrokhimiya, 2007, Vol. 43, No. 10, pp. 1277–1284.

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Stepanov, A.A., Grachev, M.K., Kurochkina, G.I. et al. Synthesis and electrochemical behavior of inclusion complexes based on β-cyclodextrin and alkylaromatic compounds: Electrochemical carboxylation of the β-cyclodextrin-1-(4-isobutylphenyl)ethylchloride inclusion complex on a glassy-carbon cathode in anhydrous dimethylformamide. Russ J Electrochem 43, 1211–1218 (2007). https://doi.org/10.1134/S1023193507100175

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  • DOI: https://doi.org/10.1134/S1023193507100175

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