Journal
TETRAHEDRON LETTERS
Volume 52, Issue 22, Pages 2862-2865Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.03.110
Keywords
beta Diketones/beta-keto esters, N-Bromo succinimide; Phenylene diamines; Quinoxalines; Neutral conditions; Water
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Funding
- CSIR, New Delhi, India
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A variety of quinoxalines were synthesized via tandem one-pot procedure for the first time in water medium. The key strategy was the in situ preparation of alpha-halo-beta-keto esters by the reaction of N-bromo succinimide with beta-keto esters and further condensation with phenylene diamines. This novel eco-friendly approach offers an easy, efficient, and mild synthesis of highly substituted quinoxalines in good yields. (C) 2011 Elsevier Ltd. All rights reserved.
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