Quinoxalines: Quinoxalines (Benzopyrazines), in organic chemistry, heterocyclic compounds containing a ring complex made up of a benzene ring and a pyrazine ring (formula I. they are isomeric with the cinnolenes, phthalazines and quinazolines. They are formed by the condensing ortho-diamines ... [100%] 2022-09-02
Quinoxaline: 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. (Chemistry) [89%] 2022-09-02 [Quinoxalines] [Simple aromatic rings]...
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