Synthesis 2018; 50(08): 1721-1727
DOI: 10.1055/s-0036-1591874
paper
© Georg Thieme Verlag Stuttgart · New York

Transition-Metal-Free C–H Arylation of Unactivated Arenes with 8-Hydroxyquinoline as a Promoter

Xuehua Zheng
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
b   School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou 511436, Guangdong, P. R. of China   Email: wyinuo3@mail.sysu.edu.cn   Email: wudeyan3@mail.sysu.edu.cn
,
Xu-Nian Wu
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
,
Jing-Yi Chen
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
,
Hai-Bin Luo
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
,
Deyan Wu*
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
,
Yinuo Wu*
a   School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. of China
› Author Affiliations
This work was supported by the Natural Science Foundation of China (21402243 and 81602955).
Further Information

Publication History

Received: 18 October 2017

Accepted after revision: 30 November 2017

Publication Date:
23 January 2018 (online)


Abstract

A method for the transition-metal-free direct C–H arylation of unactivated arenes is developed with aryl bromides as substrates and 8-hydroxyquinoline as an efficient promoter. A variety of biaryl compounds with structural diversity are obtained in moderate to high yields. Mechanistic studies reveal that the reaction proceeds via a homolytic­ aromatic substitution pathway.

Supporting Information