Ruthenium-Catalyzed Direct C–H Bond Arylations of Heteroarenes
作者:Lutz Ackermann、Alexander V. Lygin
DOI:10.1021/ol2010648
日期:2011.7.1
Ruthenium-catalyzedC–Hbondarylations of indoles, thiophenes, and pyrroles were accomplished in a highly chemo- and site-selective manner through the use of removable directing groups.
straightforward and efficient method for the rhodium-catalyzed intermolecular oxidativecross-coupling of arenes and heteroarenes with thio- and selenophene derivatives (chalcogenophenes) via double C–H bond cleavage has been developed by using Cu(OAc)2/AgSbF6 as an oxidant. The reaction is applicable to a wide range of (hetero)arenes carrying a directing group and chalcogenophenes to yield substituted biaryl
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.