Site-Specific Synthesis of Carbazole Derivatives through Aryl Homocoupling and Amination
作者:Jaeyoung Ban、Minkyung Lim、Saira Shabbir、Junghyun Baek、Hakjune Rhee
DOI:10.1055/s-0039-1690759
日期:2020.3
We synthesized various carbazoles from anilines through a three-step process with good overall yields (up to 48%). This process comprises N-acetylation, copper(0)-mediated Ullmann homocoupling, and acid-mediated intramolecular amination. It permits various functional groups on the substrate. Scale-up of the developed three-step synthetic route to carbazoles was also demonstrated.
我们通过三步法从苯胺合成了各种咔唑,总收率良好(高达48%)。该过程包括N-乙酰化,铜(0)介导的乌尔曼均偶联和酸介导的分子内胺化。它允许在基材上形成各种官能团。还证实了已开发的三步合成路线逐步扩大为咔唑。