New Advances in Chemical Research, May 2021. In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. HPLC of Formula: C8H5N3O2, In a article, mentioned the application of 18514-76-6, Name is 5-Nitroquinoxaline, molecular formula is C8H5N3O2
The C-C ring closure of alpha-chloromethyl alkyl or aryl N-aryl imines catalyzed with 1 to 10 % Pd(OAc)2/P(p-tolyl)3 afford efficiently 2-aryl- and 2-alkyl-1H-indoles. The heterocyclization reaction involves the initial formation of [2-(arylimino)ethyl]palladium(II) chloride complexes with subsequent C-H activation of the aromatic amine ring. Readily or commercially available alpha-chloromethyl-aryl or -alkyl ketones are used as the precursors. Functionalized indoles at the benzene ring are obtained when the imines are derived from substituted anilines.
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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N831 | ChemSpider