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Electrochimica Acta

Volume 28, Issue 8, August 1983, Pages 1161-1165
Electrochimica Acta

Electrochemical reduction of 4-(2′-thienyl)quinazoline in acid solutions☆

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Abstract

The electrochemical behaviour of 4(2′-thienyl)quinazoline (4-TQ) was studied in acid solutions of varying ionic strengths using polarography, cyclic voltammetry and controlled-potential electrolysis. 4-TQ is reduced in two single electron steps to give the dihydro-4-TQ product. The two polarographic waves were found to be diffusion-controlled, the first wave being reversible and the second wave irreversible. On the basis of the results obtained, a mechanism is suggested for 4-TQ reduction in which a dimerization reaction goes in parallel with the electron-transfer step.

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    ☆

    Part of the Ph.D. thesis submitted to the Indian Institute of Technology, Madras 600 036, India.

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