Journal
TETRAHEDRON LETTERS
Volume 50, Issue 42, Pages 5798-5801Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.07.134
Keywords
Gallium(III) chloride; Three-component reaction; Chromene; Heterocycles
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Funding
- CSIR, New Delhi
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Three-component coupling of naphthol, alkyne and aldehyde has been achieved in the presence of 10 moll % gallium(III) chloride in toluene under reflux conditions to afford the corresponding 1,3-disubstituted-3H-benzo[f]chromenes in good yields. This is the first example on the preparation of chromenes from naphthol, alkyne and aldehyde. (C) 2009 Elsevier Ltd. All rights reserved.
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