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        Synthesis  2006(2): 320-324  
DOI: 10.1055/s-2005-918516
   DOI: 10.1055/s-2005-918516
PAPER
© Georg Thieme Verlag Stuttgart · New YorkA Stereoselective Synthesis of (4E,7S)-(-)-7-Methoxydodec-4-enoic Acid
Weitere Informationen
            
               
                  
                        
                              Received
                              8 July 2005 
                      
Publikationsdatum:
21. Dezember 2005 (online)
            
         
      
   Publikationsverlauf
Publikationsdatum:
21. Dezember 2005 (online)

Abstract
A stereoselective synthesis of (4E,7S)-(-)-7-methoxydodec-4-enoic acid has been accomplished in eight steps from hexanal in 24% overall yield. The key steps involved the catalytic asymmetric allylation of hexanal and the coupling reaction of a chiral alkyne and a protected bromide in the presence of t-BuLi.
Key words
stereoselective synthesis - (4E,7S)-(-)-7-methoxydodec-4-enoic acid - catalytic asymmetric allylation - coupling reaction
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References
t-BuLi it is not commercially available to us due to transportation problems.
14No other signals were observed around the chiral center (C-7 and C-1′).
 
    