Synthesis of benzimidazo[2,1-b]benzothiazole derivatives through sequential Cu-catalyzed domino coupling and Pd-catalyzed Suzuki reaction
作者:Jilong Gao、Jiaoyan Zhu、Lubin Chen、Yingying Shao、Jiaqi Zhu、Yijia Huang、Xiaoxia Wang、Xin Lv
DOI:10.1016/j.tetlet.2014.04.070
日期:2014.5
the Cu-catalyzed domino coupling of o-dihaloarenes with 2-mercaptobenzimidazoles. The reaction is also applicable to a series of multi-functional substrates, affording the halo-containing products with excellent selectivity. The brominated products can further react with arylboronic acids under Pd catalysis to furnish the aryl-substituted benzimidazo[2,1-b]benzothiazole derivatives.
通过邻二卤代芳烃与2-巯基苯并咪唑的铜催化多米诺偶联反应,可以高效,方便地合成各种苯并[ d ]苯并[4,5]咪唑并[ 2,1- b ]噻唑。该反应还适用于一系列多功能底物,从而提供具有优异选择性的含卤产物。溴化产物可以在Pd催化下进一步与芳基硼酸反应,得到芳基取代的苯并咪唑并[2,1- b ]苯并噻唑衍生物。