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Synlett 2002(11): 1815-1818
DOI: 10.1055/s-2002-34868
DOI: 10.1055/s-2002-34868
LETTER
© Georg Thieme Verlag Stuttgart · New YorkEndo Selective Diels-Alder Reactions of Furan in Ionic Liquids
Further Information
Received
17 April 2002
Publication Date:
21 October 2002 (online)
Publication History
Publication Date:
21 October 2002 (online)
Abstract
Diels-Alder reactions of the heteroaromatic diene furan proceed with enhanced isolated yields and reversal of endo/exo selectivity (2:1 endo vs exo) in the ionic liquids [bmim]BF4 and [bmim]PF6 compared to conventional methods. The potential utility of ionic liquids as solvents in Diels-Alder reactions of thiophene and pyrrole derivatives has also been demonstrated.
Key words
Diels-Alder reactions - heterocycles - solvent effects - furans - pyrroles
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