Improved synthesis of N-alkyl substituted dithieno[3,2-b:2′,3′-d]pyrroles
作者： Guy Koeckelberghs , Lieven De Cremer , Wouter Vanormelingen , Wim Dehaen , Thierry Verbiest
DOI: 10.1016/J.TET.2004.10.106
关键词:
摘要: Abstract A new, convergent and improved synthetic method to prepare N -alkyl substituted dithienopyrroles is described. The procedure consists of a Pd-catalyzed amination 3,3′-dibromo-2,2′-bithiophene. reaction conditions were optimized, which makes this applicable these molecules easily in high yields on large scale.
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