Synlett 2015; 26(07): 975-979
DOI: 10.1055/s-0034-1380320
letter
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Symmetrical Biaryls through Palladium-Catalyzed Ligand-Free Homocoupling of Aryliodine(III) Diacetates

Qiheng Xiong
College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. of China   Email: fuzhengjiang@ncu.edu.cn   Email: caihu@ncu.edu.cn
,
Zhengjiang Fu*
College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. of China   Email: fuzhengjiang@ncu.edu.cn   Email: caihu@ncu.edu.cn
,
Zhaojie Li
College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. of China   Email: fuzhengjiang@ncu.edu.cn   Email: caihu@ncu.edu.cn
,
Hu Cai*
College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, P. R. of China   Email: fuzhengjiang@ncu.edu.cn   Email: caihu@ncu.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 16 December 2014

Accepted after revision: 19 January 2015

Publication Date:
19 February 2015 (online)


Abstract

An efficient process for the synthesis of symmetrical biaryls from readily available and bench-stable aryliodine(III) diacetates has been developed with high regional selectivity. The process exhibited high selectivities and good functional group tolerance with respect to methyl, bromo, chloro and cyano groups. Mechanistic studies revealed that the transformation involved in situ generation of aryl iodide from heating-promoted degradation of aryliodine(III) diacetate, followed by Ullmann-type homocoupling.

Supporting Information