Palladium-catalyzed coupling reactions towards the synthesis of well-defined thiophene-oligomers

J Hassan, C Gozzi, E Schulz, M Lemaire

文献索引：Hassan, Jwanro; Gozzi, Christel; Schulz, Emmanuelle; Lemaire, Marc Journal of Organometallic Chemistry, 2003 , vol. 687, # 2 p. 280 - 283

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被引用次数: 2

摘要

Heck-and Ullmann-type palladium-catalyzed reactions were used in order to perform the synthesis of 3′, 4 ″-dioctyl-2, 2′, 5′ 2 ″, 5 ″, 2′″-tetrathienyl. The desired oligothiophene was synthesized in five steps with a total yield of 38% by a Heck-type reaction of bromo-derivatives and a yield of 45% by an Ullmann-type reaction of iodo- precursors.