A bicyclic heterocycle consisting of a benzene ring fused to that of pyrazine
any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones
Origin: [Quinoline + glyoxal.]
A quinoxaline, also called a benzopyrazine, in organic chemistry, is a heterocyclic compound containing a ring complex made up of a benzene ring and a pyrazine ring. It is isomeric with other naphthyridines including quinazoline, phthalazine and cinnoline. Quinoxalines are used as dyes, pharmaceuticals and antibiotics such as echinomycin, levomycin and actinoleutin. Some studies were carried out in order to explore the antitumoral properties of quinoxaline compounds: Recently, quinoxaline and its analogs have been investigated as the catalyst's ligands: They can be formed by condensing ortho-diamines with 1,2-diketones. 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. Quinoxaline and its analogues may also be form by reduction of amino acids substituted 1,5-difluoro-2,4-dinitrobenzene: One study used 2-iodoxybenzoic acid as a catalyst in the reaction of benzil with 1,2-diaminobenzene:
The numerical value of quinoxaline in Chaldean Numerology is: 4
The numerical value of quinoxaline in Pythagorean Numerology is: 6
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"quinoxaline." Definitions.net. STANDS4 LLC, 2018. Web. 17 Mar. 2018. <https://www.definitions.net/definition/quinoxaline>.