Original scientific paper

https://doi.org/10.5599/jese.555

Electroorganic synthesis of disulfonamide substituted p-benzoquinone by hydroquinone electrochemical oxidation

Seba Nassif ; Department of Chemistry, Faculty of Science, Al-Baath University, Homs, Syria
Deeb Bakeer ; Department of Chemistry, Faculty of Science, Al-Baath University, Homs, Syria
Rushdi Madwar ; Department of Chemistry, Faculty of Science, Al-Baath University, Homs, Syria
Waleed Khadam ; Faculty of Pharmacy, Al-Baath University, Homs, Syria
Abeer Nakhla ; Faculty of Pharmacy, Al-Baath University, Homs, Syria

Abstract

This study illustrates electrochemical behavior of hydroquinone and 4-amino-6-chloro­benzene-1,3-disulfonamide in the phosphate buffer solution evaluated by cyclic voltammetry. It was found that the peak of the hydroquinone oxidation potential in the presence of 4-amino-6-chlorobenzene-1,3-disulfonamide is shifted to more positive values compared to hydroquinone alone. Based on these results, the electrochemical synthesis of new disulfonamide substituted p-benzoquinone is proposed and carried out via electro­chemical oxidation of hydroquinone in the presence of 4-amino-6-chlorobenzene-1,3-di­sulfonamide in the electrolytic cell. It has been concluded that hydroquinone is converted into disulfonamide substituted p-benzoquinone via an ECE mechanism. The successful electrochemical synthesis was conducted in the water/ethanol mixture under green conditions without any toxic reagents or solvents and with high atom economy.

Keywords

Cyclic voltammetry; electrochemical synthesis; hydroquinone; disulfonamide

Hrčak ID:

211784

URI

https://hrcak.srce.hr/211784

Publication date:

8.12.2018.

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