کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
219871 | 463301 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrochemical dimerization of 4-methylesculetin: Synthesis and kinetic study of a highly-oxygenated dimer Electrochemical dimerization of 4-methylesculetin: Synthesis and kinetic study of a highly-oxygenated dimer](/preview/png/219871.png)
This paper describes the electrochemical dimerization of 4-methylesculetin via anodic oxidation. The voltammetric data show that electrochemically generated ortho-benzoquinone participates in Michael addition reaction with starting molecular (4-methylesculetin) forms the corresponding highly-oxygenated dimer. The mechanism of dimerization has been studied in water/acetonitrile mixture using cyclic voltammetry and controlled-potential coulometry. The electrochemical synthesis of this highly-oxygenated dimer has been successfully performed in an undivided cell in good yield and purity. Furthermore, the observed homogeneous rate constants of the chemical reaction between ortho-benzoquinone and 4-methylesculetin were estimated by comparing the experimental cyclic voltammetric curves with the digitally simulated ones.
Journal: Journal of Electroanalytical Chemistry - Volume 650, Issue 2, 1 January 2011, Pages 226–232