Takada, Atsushi et al. published their research in Chemical & Pharmaceutical Bulletin in 1983 | CAS: 6639-82-3

6-Methoxyquinoxaline (cas: 6639-82-3) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Application of 6639-82-3

Studies on the thalleioquine reaction was written by Takada, Atsushi;Negishi, Haruo;Ueda, Takeo. And the article was included in Chemical & Pharmaceutical Bulletin in 1983.Application of 6639-82-3 This article mentions the following:

Two colored substances produced in the thalleioquine reaction using 6-methoxyquinoxaline as a model compound were isolated. The red substance was determined to be an 8,8′-biquinolinyl derivative (I), and the blue substance was found to be a super-stable radical compound In the experiment, the researchers used many compounds, for example, 6-Methoxyquinoxaline (cas: 6639-82-3Application of 6639-82-3).

6-Methoxyquinoxaline (cas: 6639-82-3) belongs to quinoxaline derivatives. Condensed heterocycles of quinoxalines have become attractive targets in synthetic and medicinal chemistry due to their significant biological activities. The parent substance of the group, quinoxaline, results when glyoxal is condensed with 1,2-diaminobenzene. Substituted derivatives arise when α-ketonic acids, α-chlorketones, α-aldehyde alcohols and α-ketone alcohols are used in place of diketones.Application of 6639-82-3

Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider