Palladium-catalyzed direct 5-arylation of formyl- or acetyl-halothiophene derivatives
作者:Kassem Beydoun、Henri Doucet
DOI:10.1016/j.jorganchem.2010.12.021
日期:2011.5
found to catalyze the direct arylation of some functionalized halothiophene derivatives allowing the synthesis in only one step of polyfunctionalized arylated thiophenes. In the presence of 2-acetyl-3-chlorothiophene, 2-acetyl-4-chlorothiophene, 2-acetyl-3-bromothiophene diethylacetal or 2-(4-bromothiophen-2-yl)-[1,3]dioxolane, and a variety of aryl bromides, the 5-arylation products were obtained