A Direct Palladium-Catalyzed Route for the Synthesis of Benzo[a]carbazoles through Sequential C-C Bond Formation and C-H Bond Functionalization
作者:Ebrahim Kianmehr、Mohammad Ghanbari
DOI:10.1002/ejoc.201101401
日期:2012.1
A directpalladium-catalyzed route for the synthesis of novel benzo[a]carbazoles through sequential C–C bond formation and C–H bond functionalization by using readily available starting materials has been demonstrated. Prominent among the advantages of this new method are operational simplicity and good yields.
Direct synthesis of benzo[a]carbazoles by palladium-catalyzed domino reactions: synthesis and photophysical properties of diverse benzo[a]carbazoles
作者:Mohammad Ghanbari、Ebrahim Kianmehr、Sara Karimi Behzad、Seik Weng Ng
DOI:10.1007/s13738-015-0706-9
日期:2016.1
a single isomer of two possible products which leads to the formation of benzo[a]carbazoles via a palladium-catalyzed C–H bond functionalization reaction. The development of the annulation reaction with a wide substrate scope provided a unique opportunity to evaluate photophysical properties of a series of benzo[a]carbazoles. Almost all the compounds evaluated in this study were found to emit purple
已经开发出一种直接,简洁且原子经济的合成方法,该方法使用钯催化的反应生成苯并[ a ]咔唑。通过Knoevenagel缩合,然后进行分子内邻芳基化,该反应产物以良好或优异的产率得到了各种苯并[ a ]咔唑。该方法的合成吸引力在于其可用于多种吲哚和溴苯甲醛衍生物。反应的机理涉及两种可能产物的单一异构体的形成,这导致苯并[ a]的形成。咔唑通过钯催化的C–H键官能化反应。开发具有广泛底物范围的环空反应为评估一系列苯并[ a ]咔唑的光物理性质提供了独特的机会。发现几乎所有在这项研究中评估的化合物都在可见光区域发出紫色至蓝色的光。还描述了一些有趣的结构-属性关联。