Ortho-Functionalization of 2-Phenoxypyrimidines via Palladium-Catalyzed C−H Bond Activation
作者:Shaojin Gu、Chao Chen、Wanzhi Chen
DOI:10.1021/jo901316b
日期:2009.9.18
The palladium-catalyzeddirect acetoxylation and arylation of 2-aryloxypyrimidine has been described. The aromatic C−H bonds may be functionalized in moderate to excellent yields providing a facile method for the synthesis of phenol derivatives, which show antimycobacterial and herbicidal activities.
Ruthenium-Catalyzed <i>ortho</i>/<i>meta</i>-Selective Dual C–H Bonds Functionalizations of Arenes
作者:Gang Li、Biao Zhu、Xingxing Ma、Chunqi Jia、Xulu Lv、Junjie Wang、Feng Zhao、Yunhe Lv、Suling Yang
DOI:10.1021/acs.orglett.7b02439
日期:2017.10.6
The first example of transition-metal-catalyzed ortho/meta-selective dual C–H functionalizations of arenes in one reaction is described. In this transformation, ortho-C–H chlorination and meta-C–H sulfonation of 2-phenoxypyri(mi)dines were achieved simultaneously under catalysis by [Ru(p-cymene)Cl2]2. The other reactant, namely, an arylsulfonyl chloride, played the role of both a sulfonation and chlorination