(<i>E</i>)-9-(2-Iodovinyl)-9<i>H</i>-carbazole: A New Coupling Reagent for the Synthesis of π-Conjugated Carbazoles
作者:Piotr Pawluć、Adrian Franczyk、Jȩdrzej Walkowiak、Grzegorz Hreczycho、Maciej Kubicki、Bogdan Marciniec
DOI:10.1021/ol200350a
日期:2011.4.15
The one-pot synthesis of (E)-9-(2-iodovinyl)-9H-carbazole via sequential ruthenium-catalyzed silylative coupling of N-vinylcarbazole with vinyltrimethylsilane and iododesilylation is reported. Its use as a new building block in the palladium-catalyzed Sonogashira and Suzuki−Miyaura coupling reactions to yield new carbazole-containing (E)-but-1-en-3-ynes and (E,E)-buta-1,3-dienes is demonstrated.
据报道,通过连续的钌催化的N-乙烯基咔唑与乙烯基三甲基硅烷的硅烷化偶联和碘去甲硅烷基化反应,一锅合成(E)-9-(2-碘乙烯基)-9 H-咔唑。它用作钯催化的Sonogashira和Suzuki-Miyaura偶联反应中的新结构单元,以产生新的含咔唑的(E)-but-1-en-3-ynes和(E,E)-buta-1,3 -二烯被证明。