A simple and efficient route to N-functionalized dithieno [3, 2-b: 2', 3'-d] pyrroles: fused-ring building blocks for new conjugated polymeric systems
K Ogawa, SC Rasmussen
Index: Ogawa, Katsu; Rasmussen, Seth C. Journal of Organic Chemistry, 2003 , vol. 68, # 7 p. 2921 - 2928
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Citation Number: 107
Abstract
A general synthetic route has been developed for the simple and efficient preparation of N- functionalized dithieno [3, 2-b: 2', 3'-d] pyrroles. These synthetic methods utilize N- functionalized N-(3'-thienyl)-3-aminothiophenes produced from the Pd-catalyzed amination of 3-bromothiophene with primary amines, followed by a one-pot bromination/cyclization process. This combination allows the convenient preparation of a variety of N- ...
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