Journal
TETRAHEDRON LETTERS
Volume 53, Issue 20, Pages 2508-2510Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.02.113
Keywords
Quinoxalines; alpha-Hydroxyketones; o-Phenylenediamines; Cycloaddition; Gallium perchlorate
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Funding
- National Natural Science Foundation of China [20772088, 21172163]
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A new approach for the synthesis of 2-substituted quinoxalines by Ga(ClO4)(3)-catalyzed cycloaddition of alpha-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. (C) 2012 Elsevier Ltd. All rights reserved.
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