Synthesis 2017; 49(05): 1073-1086
DOI: 10.1055/s-0036-1588893
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Di- and Triarylmethanes through Palladium-Catalyzed Reductive Coupling of N-Tosylhydrazones and Aryl Bromides

Yamu Xia
a   College of Chemical Engineering, Qingdao University of Science Technology, Qingdao 266042, P. R. of China
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Fangdong Hu
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Ying Xia
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Zhenxing Liu
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Fei Ye
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Yan Zhang
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
,
Jianbo Wang*
b   Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, P. R. of China   Email: wangjb@pku.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 27 July 2016

Accepted after revision: 14 September 2016

Publication Date:
13 October 2016 (online)


Abstract

A palladium-catalyzed reductive coupling between N-tosylhydrazones and aryl bromides has been developed. The reaction provides an efficient method for the synthesis of diarylmethanes and triarylmethanes via the formation of C(sp2)–C(sp3) single bonds. This new methodology for the synthesis of diarylmethanes and triarylmethanes is featured by the ready availability of the starting materials, mild reaction conditions, and the tolerance of wide range of functional groups. The reaction follows a pathway including palladium carbene formation, migratory insertion, and reduction of the alkylpalladium(II) intermediate.

Supporting Information