New Advances in Chemical Research in 2021. In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 1448-87-9, name is 2-Chloroquinoxaline, introducing its new discovery. Formula: C8H5ClN2
Malononitrile could be utilized as a synthon for the carbonyl moiety via a one-pot process that was initiated via base-mediated SNAr substitution of a heteroaryl halide. Subsequent peracetic acid oxidation of the resultant anion delivered an electrophilic acyl nitrile in situ that readily reacted with added nucleophiles to afford heteroaryl carboxylic acid derivatives. The reaction of the sodium salt of malononitrile with a series of heteroaryl chlorides followed by the subsequent addition of an amine and peracetic acid provided the corresponding heteroaryl amides.
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Reference：
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N740 | ChemSpider