The polarography of quinoxaline. II. 6-Substituted derivatives was written by Strier, Murray P.;Cavagnol, J. C.. And the article was included in Journal of the American Chemical Society in 1958.COA of Formula: C8H5ClN2 This article mentions the following:
The reduction of 6-amino-, 6-bromo-, 6-chloro-, 6-ethoxy-, and 6-methoxyquinoline at the dropping Hg electrode is similar to that for quinoxaline. Two waves were found at pH values of 2, 4, and 6 whereas the 1st major wave occurred at pH 8 and 10. The 1st wave represents reduction to the 1,4-dihydro stage. At pH 2 the differentiated nature of the wave is indicative of a bimol. reduction in 2 successive 1-electron steps. At higher pH values the reduction was directly to the dihydroquinoxaline. For 6-aminoquinoxaline the latter occurred at all pH values. The 2nd wave is due to evolution of H catalyzed by the 1,4-dihydroquinozalinium ion. Though the criterion for polarographic reversibility was not established, Hammett’s equation was found to be applicable to the 1st wave throughout the pH range studied. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1COA of Formula: C8H5ClN2).
6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxaline derivatives are important constituents of pharmacologically active compounds, including as well as for RNA synthesis inhibition, reactive dyes and pigments, azo dyes, flurox Cylin Dyes, Corrosion Inhibitors and Photovoltaic Polymers. They are well-known for application in organic light emitting devices, polymers and pharmaceutical agents. The quinoxaline-containing polymers are applicable in optical devices due to their thermal stability and low band gap.COA of Formula: C8H5ClN2
Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider