One-Pot Approach to 1,2-Disubstituted Indoles via Cu(II)-Catalyzed Coupling/Cyclization under Aerobic Conditions and Its Application for the Synthesis of Polycyclic Indoles
作者:Jilong Gao、Yingying Shao、Jiaoyan Zhu、Jiaqi Zhu、Hui Mao、Xiaoxia Wang、Xin Lv
DOI:10.1021/jo501250u
日期:2014.10.3
derivatives were efficiently and facilely synthesized from 2-alkynylanilines and boronic acids. 2-(2-Bromoaryl)-1-aryl-1H-indoles, which were selectively generated in one pot under the Cu catalysis, afforded the indolo[1,2-f]phenanthridines via Pd-catalyzed intramolecular direct C(sp2)–H arylation. The one-pot tandem approaches to the polycyclic indole derivatives were also successfully achieved.
通过Cu(II)催化的多米诺骨牌偶联/环化工艺已经开发出一种简单的1,2-二取代的吲哚组装体。在有氧条件下,可以从2-炔基苯胺和硼酸有效地合成各种1,2-二取代的吲哚衍生物。在铜催化下在一锅中选择性生成的2-(2-溴芳基)-1-芳基-1 H-吲哚通过Pd催化的分子内直接C(sp 2)提供吲哚[1,2- f ]菲啶)–芳基化。一锅串联方法也成功地实现了多环吲哚衍生物。