A green synthesis of quinoxalines and 2,3-dihydropyrazines was written by Delpivo, Camilla;Micheletti, Gabriele;Boga, Carla. And the article was included in Synthesis in 2013.Formula: C8H5ClN2 This article mentions the following:
Quinoxaline and dihydropyrazine derivatives were obtained in high yields by simple cyclocondensation of 1,2-diamines with 1,2-dicarbonyl compounds in water. In some cases, the products spontaneously precipitated from the reaction mixture, making it possible to recover and reuse the mother liquor for further condensations. The very mild reaction conditions, the high yields of the products, and the absence of any catalyst make this methodol. an efficient and green route to quinoxalines and dihydropyrazines. In the experiment, the researchers used many compounds, for example, 6-Chloroquinoxaline (cas: 5448-43-1Formula: C8H5ClN2).
6-Chloroquinoxaline (cas: 5448-43-1) belongs to quinoxaline derivatives. Quinoxalines are important class of heterocyclic compounds, associated with wider pharmacological applications. Quinoxaline and its analogues may also be formed by reduction of amino acids substituted 1,5-difluoro-2,4-dinitrobenzene (DFDNB),One study used 2-iodoxybenzoic acid (IBX) as a catalyst in the reaction of benzil with 1,2-diaminobenzene.Formula: C8H5ClN2
Referemce:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider