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Synlett 2005(5): 0785-0788
DOI: 10.1055/s-2005-863738
DOI: 10.1055/s-2005-863738
LETTER
© Georg Thieme Verlag Stuttgart · New York
A Quick, Clean and Green Synthesis of Methylenedioxyprecocene and other Chromenes over Basic Montmorillonite K10 Clay
Further Information
Received
21 October 2004
Publication Date:
09 March 2005 (online)
Publication History
Publication Date:
09 March 2005 (online)
Abstract
The microwave-assisted, clay-catalyzed condensation of sesamol and other phenols with 3-methyl-2-butenal to give methylenedioxyprecocene 3 and other chromenes, is described.
Key words
green chemistry - natural products - Montmorillonite clay - microwave-assisted - chromenes
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