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Synlett 2005(6): 0947-0950
DOI: 10.1055/s-2005-864805
DOI: 10.1055/s-2005-864805
LETTER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of 2(5H)-Furanones via Oxidative Ring Expansion of 4-Hydroxy-2-cyclobutenones
Further Information
Received
26 January 2005
Publication Date:
23 March 2005 (online)
Publication History
Publication Date:
23 March 2005 (online)
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Abstract
A new method to reduce cyclobutenediones towards 4-hydroxy-2-cyclobutenones was established. The latter compounds gave rise to new 5-halo-2(5H)-furanones by reaction with halogenating agents via a cationic ring-opening-ring-closure mechanism.
Key words
cyclobutenones - 2(5H)-furanones - ring expansion - rearrangements - oxidations
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