We report a chelation-assisted C–H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobaltcatalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility
Ruthenium(II)-Catalyzed Direct C–H Arylation of Indoles with Arylsilanes in Water
作者:Pradeep Nareddy、Frank Jordan、Michal Szostak
DOI:10.1021/acs.orglett.7b03567
日期:2018.1.19
The ruthenium(II)-catalyzed, heteroatom-directed C–Harylation of indoles with arylsilanes in water has been developed. The method represents the first example of a ruthenium(II)-catalyzed oxidativeC–Harylation in water/aqueous media as a sustainable solvent for C–Hfunctionalization. The reaction enables the synthesis of a wide range of indoles with exquisite selectivity for arylation at the C-2
Rhodium-Catalyzed Decarbonylative Direct C2-Arylation of Indoles with Aryl Carboxylic Acids
作者:Lingjuan Zhang、Xiao Xue、Conghui Xu、Yixiao Pan、Guang Zhang、Lijin Xu、Huanrong Li、Zhangjie Shi
DOI:10.1002/cctc.201402534
日期:2014.11
A RhI‐catalyzed direct C2‐arylation of indoles with diversely substituted arylcarboxylicacids has been developed using 2‐pyrimidyl group as an easily installable and readily removable N‐directing group. The reaction proceeded smoothly without the need for any external oxidants under relatively mild conditions to produce the C2‐arylated indoles in high yields with excellent regioselectivity. A range
Mild Rh(III)-Catalyzed Direct C–H Bond Arylation of (Hetero)Arenes with Arylsilanes in Aqueous Media
作者:Ming-Zhu Lu、Ping Lu、Yun-He Xu、Teck-Peng Loh
DOI:10.1021/ol500754h
日期:2014.5.16
An efficient rhodium(III)-catalyzed C-H bond activation and further direct arylation of (hetero)arenes with organosilanes in aqueous media was developed. This reaction shows good substrate scope and excellent functional group compatibility and gives the products in good yields with excellent regioselectivity.