Synthesis 2018; 50(12): 2281-2306
DOI: 10.1055/s-0036-1591993
review
© Georg Thieme Verlag Stuttgart · New York

An Update of N-Tosylhydrazones: Versatile Reagents for Metal-Catalyzed and Metal-Free Coupling Reactions

Hui Wang
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. of China   Email: dengyuhua@yun.edu.cn   Email: zhihui_shao@hotmail.com
,
Yu-Hua Deng*
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. of China   Email: dengyuhua@yun.edu.cn   Email: zhihui_shao@hotmail.com
,
Zhihui Shao*
Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. of China   Email: dengyuhua@yun.edu.cn   Email: zhihui_shao@hotmail.com
› Author Affiliations
We are grateful for the financial support from NSFC (21672184), the Program for Changjiang Scholars and Innovative Research Team in University (IRT13095), the Program for Innovative Research Team (in Science and Technology) in University of Yunnan Province, YunLing scholar of Yunnan Province, and Yunnan University.
Further Information

Publication History

Received: 04 February 2018

Accepted after revision: 06 March 2018

Publication Date:
23 May 2018 (online)


Abstract

N-Tosylhydrazones have had widespread application in organic synthesis for more than a half century. In most of cases, N-tosylhydrazones, as masked diazo compounds, have been generally used in a series of important carbon–carbon and carbon–heteroatom bond-forming reactions. This review provides an update on progress in diverse coupling reactions of N-tosylhydrazones since 2012. The examples selected are mainly categorized by metal-catalyzed and metal-free systems, wherein four main types of transformations including insertion, olefination, alkynylation, and cyclization are discussed for each system.

1 Introduction

2 Transition-Metal-Catalyzed Coupling Reactions

3 Metal-Free Coupling Reactions

4 Conclusion and Outlook