Journal
TETRAHEDRON
Volume 69, Issue 44, Pages 9335-9348Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.07.104
Keywords
Regioselective cyclization; Benzopyran; Benzofuran; Benzopyranone; Isoflavone
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Funding
- Thailand Research Fund [MRG5380136]
- Chulabhorn Research Institute, Chulabhorn Graduate Institute, and Center of Excellence on Environmental Health and Toxicology
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The regioselective cyclization/dehydration sequence of ortho diketo phenoxyethers induced by DBU has been explored. The results demonstrated a high degree of selectivity with preference for 6-exo-trig cyclization leading to the formation of gamma-benzopyranone derivatives in good yield. (C) 2013 Elsevier Ltd. All rights reserved.
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