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Synthesis 2011(4): 593-598
DOI: 10.1055/s-0030-1258404
DOI: 10.1055/s-0030-1258404
PAPER
© Georg Thieme Verlag
Stuttgart ˙ New York
Selective Halogenation at Position 3 of 5-Hydroxy-2,7-dimethylchromone and Related Compounds
Weitere Informationen
Received
25 August 2010
Publikationsdatum:
11. Januar 2011 (online)
Publikationsverlauf
Publikationsdatum:
11. Januar 2011 (online)
Abstract
The core moiety of several natural products referred in the literature as altechromone A can be selectively brominated or iodinated at position 3 despite the adjacent phenolic moiety. This method is extended to more elaborated 5-hydroxychromones exhibiting additional multiple bonds.
Key words
halogenation - heterocycles - chromones - iodination - bromination
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