CeCl3·7H2O-Catalyzed Synthesis of Quinoxaline Derivatives in Liquid PEG-400
2011
Phenacyl bromides (II) possessing electron-donating and -withdrawing substituents on the aromatic ring react with o-phenylenediamine (I) in an alternative reaction medium in the presence of cerium chloride heptahydrate as a novel catalyst to afford the 2-aryl-substituted quinoxalines (III) and (V) in very good yields.
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KQI