Synthesis and Functionalization of 3,3′-Bis(spirodienone)-Bridged 2,2′-Bithiophene: A New Building Block for Redox-Active Molecular Switching Materials
作者:Hiroyuki Kurata、Sang Kim、Takahisa Fujimoto、Kouzou Matsumoto、Takeshi Kawase、Takashi Kubo
DOI:10.1021/ol8015379
日期:2008.9.1
Bithiophene derivatives bridged with a bis(spirodienone) unit were synthesized and characterized. Lithiation of the thiophene rings of an unsubstituted derivative proceeded without decomposition of the bis(spirodienone) skeleton. Palladium-catalyzed cross-coupling reactions (Suzuki-Miyaura, Sonogashira) with bromides afforded a variety of pi-extended derivatives. Bond breaking and formation under redox
合成并表征了双(螺二烯酮)单元桥接的联噻吩衍生物。未取代的衍生物的噻吩环的锂化未发生双(螺二烯酮)骨架的分解。钯与溴化物的交叉偶联反应(Suzuki-Miyaura,Sonogashira)可提供多种pi扩展的衍生物。通过循环伏安法观察在氧化还原条件下的键断裂和形成。