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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 YorkSelective Halogenation at Position 3 of 5-Hydroxy-2,7-dimethylchromone and Related Compounds
Further Information
            
               
                  
                        
                              Received
                              25 August 2010 
                      
Publication Date:
11 January 2011 (online)
            
         
      
   Publication History
Publication Date:
11 January 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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