New Advances in Chemical Research, May 2021. Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction.name: 6-Nitroquinoxaline, In a article, mentioned the application of 6639-87-8, Name is 6-Nitroquinoxaline, molecular formula is C8H5N3O2
Non-symmetrical 2,3-disubstituted quinoxalines are not easily obtained in good yields because of the lack of regioselectivity of the Hinsberg condensation, or the large number of steps required for achieving their preparation. Two efficient methods leading to non-symmetrical 2,3-disubstituted quinoxalines, carried out in smooth conditions, have been developed in our laboratory. These methods enable the synthesis of pharmacologically active quinoxaline derivatives.
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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N953 | ChemSpider