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Ga(ClO4)3-catalyzed synthesis of quinoxalines by cycloaddition of α-hydroxyketones and o-phenylenediamines |
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| Authors: | Fan Pan Tang-Ming Chen Jia-Jia Cao Jian-Ping Zou Wei Zhang |
| Institution: | 1. Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou University, 199 Renai Street, Suzhou, Jiangsu 215123, China;2. Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA |
| Abstract: | A new approach for the synthesis of 2-substituted quinoxalines by Ga(ClO4)3-catalyzed cycloaddition of α-hydroxyketones and o-phenylenediamines is introduced. The reaction is catalyzed by 10 mol % of Ga(ClO4)3 in EtOH at room temperature. It is performed under simple and mild conditions to afford the product in good yield. |
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