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VOLTAMMETRIC STUDIES ON SOME SUBSTITUTED 5-ARYLIDENE-2-THIOHYDANTOIN IN NONAQUEOUS MEDIUM
Faculty
Science
Year:
1992
Type of Publication:
Article
Pages:
1117-1124
Authors:
ABOUELENIEN, GM, ISMAIL, NA, ELDIN, AAM
DOI:
10.1007/BF00808274
Journal:
MONATSHEFTE FUR CHEMIE SPRINGER-VERLAG WIEN
Volume:
123
Research Area:
Chemistry
ISSN
ISI:A1992KF56100006
Keywords :
5-ARYLIDENE-2-THIOHYDANTOIN, DC-VOLTAMMETRY, CYCLIC VOLTAMMETRY, COULOMETRY, NONAQUEOUS MEDIUM
Abstract:
Differently substituted 5-arylidene-2-thiohydantoins (2 a - f) were studied electrochemically in benzonitrile with 0.1 M tetra-n-butylammonium-perchlorate as supporting electrolyte using DC-, cyclic voltammetry (CV), coulometry and controlled potential electrolysis (CPE). These compounds are oxidized in a one two-electron transfer process or in irreversible two successive one-electron processes to the corresponding diradical, which simaltaneously reacts with the solvent to regenerate the starting species. On the other hand the reduction products are the 5-arylidene-4-imidazolidinone-2-thiols.
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