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VOLTAMMETRIC STUDIES ON SOME ARYLHYDRAZONES OF ALPHA-CYANO KETONES AND ALPHA-CYANO ESTERS
Faculty
Science
Year:
1991
Type of Publication:
Article
Pages:
651-654
Authors:
ABOUELENIEN, GM, ISMAIL, NA, HAFEZ, TS
DOI:
10.1246/bcsj.64.651
Journal:
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN CHEMICAL SOC JAPAN
Volume:
64
Research Area:
Chemistry
ISSN
ISI:A1991FA79700048
Keywords :
VOLTAMMETRIC STUDIES , SOME ARYLHYDRAZONES , ALPHA-CYANO KETONES
Abstract:
The redox characteristics of the title compounds are extensively studied using DC-, cyclic voltammetry, coulometry, and controlled potential electrolysis in benzonitrile at platinum electrodes. These compounds are oxidized in one-electron transfer process followed by deprotonation which leads to dimerization. The reduction process differs according to the nature of the compound and the electron-withdrawing power of the substitutent in the alpha-position. They can be reduced in a single two electron or two one electron waves leading in both cases to saturation of the hydrazonic moiety.
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