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        Synthesis  2005(4): 610-616  
DOI: 10.1055/s-2005-861804
   DOI: 10.1055/s-2005-861804
PAPER
© Georg Thieme Verlag Stuttgart · New YorkStille Coupling of 2-Diarylaminothiophenes with Mono- and Dibromo(het)arylenes
Further Information
            
               
                  
                        
                              Received
                              10 August 2004 
                      
Publication Date:
09 February 2005 (online)
            
         
      
   Publication History
Publication Date:
09 February 2005 (online)

Abstract
N,N-Diaryl-substituted 2-aminothiophenes 3 have been transformed by reaction with several bromobenzenes 5 and 2-bromothiophenes 6 in a palladium catalysed cross-coupling reaction, via 2-(N,N-diarylamino)-5-stannyl-thiophenes 4, into N,N-diaryl-substituted 2-amino-5-phenylthiophenes 7 and 5-amino-2,2′-bithiophenes 9 as well as into N,N′-peraryl-substituted 5,5′-diamino-2,2′-bithiophenes 8 and their phenylene and thienylene homologues 10-13.
Key words
cross-coupling - heterocycles - metalations - palladium - Stille reaction
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