Journal
TETRAHEDRON LETTERS
Volume 53, Issue 33, Pages 4469-4472Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.06.069
Keywords
3,4-Dihydrobenzopyran-2-one; Iodine; Solvent-free; Phenol; Cinnamic acid
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Molecular iodine was used as a catalyst in the [3+3] cyclocoupling of phenols and cinnamic acids which proceeds via a tandem esterification-hydroarylation process at 120-130 degrees C under solvent-free conditions. Substituted 4-aryl-3,4-dihydrobenzopyran-2-ones were obtained in good yields. (C) 2012 Elsevier Ltd. All rights reserved.
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