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Synthesis 2011(10): 1569-1574
DOI: 10.1055/s-0030-1260005
DOI: 10.1055/s-0030-1260005
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Facile Synthesis of Coumarin- and Quinolone-Annulated Benzazoninone Derivatives by an Intramolecular Heck Reaction Strategy via 9-exo-trig Cyclization
Further Information
Received
20 January 2011
Publication Date:
15 April 2011 (online)
Publication History
Publication Date:
15 April 2011 (online)
Abstract
A synthetic strategy based on the application of the aromatic aza-Claisen rearrangement followed by an intramolecular Heck reaction sequence as the key step has been developed for the regiocontrolled synthesis of hitherto unreported coumarin- and quinolone-annulated benzazoninone derivatives in 48-69% yield.
Key words
coumarin - quinolone - benzazoninones - aza-Claisen rearrangement - Heck reaction
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