Synthetic Route of 6639-87-8, New research progress on 6639-87-8 in 2021. Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, preparation and modification of special coatings, and research on the structure and performance of functional materials.6639-87-8, Name is 6-Nitroquinoxaline, molecular formula is C8H5N3O2. In a article，once mentioned of 6639-87-8
(Chemical Equation Presented) 1,4-Diethyl-1,2,3,4-tetrahydro-6- nitroquinoxaline 4 was synthesized by alkylative reduction of 6-nitroquinoxaline. Catalytic reduction of 4 followed by cyclocondensation with heterocyclic malondialdehydes afforded novel 8-(heteroaryl)-1,4-diethyl-1,2,3,4- tetrahydropyrido[2,3-g]quinoxalines. The solutions of these novel compounds having 1,4-diethyl-1,2,3,4-tetrahydroquinoxaline framework as an electron releasing system showed absorption in the range of 424-426 nm in the visible region and exhibited brilliant bluish-green fluorescence. The thermogravimetric curve obtained by thermogravimetric analysis displayed that these fluorophores possess excellent thermal stability with one-step thermal decomposition.
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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N967 | ChemSpider