Synthesis 2015; 47(04): 439-459
DOI: 10.1055/s-0034-1379890
review
© Georg Thieme Verlag Stuttgart · New York

Transition-Metal-Catalyzed Direct C–H Functionalization under External-Oxidant-Free Conditions

Jiayu Mo
Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Jimei Ave. 668, Xiamen 361021, P. R. of China   Email: cuixl@hqu.edu.cn
,
Lianhui Wang
Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Jimei Ave. 668, Xiamen 361021, P. R. of China   Email: cuixl@hqu.edu.cn
,
Yunqi Liu
Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Jimei Ave. 668, Xiamen 361021, P. R. of China   Email: cuixl@hqu.edu.cn
,
Xiuling Cui*
Key Laboratory of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine and School of Biomedical Sciences, Huaqiao University & Engineering Research Center of Molecular Medicine, Ministry of Education, Jimei Ave. 668, Xiamen 361021, P. R. of China   Email: cuixl@hqu.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 26 September 2014

Accepted after revision: 14 November 2014

Publication Date:
21 January 2015 (online)


Abstract

The use of an ‘internal’ oxidant contained within a directing group has emerged as a practical strategy in metal-catalyzed direct C–H activations in recent years, owing to its being highly sustainable. This review presents the rapid advances of this novel strategy through analyzing and comparing the different types of internal oxidant in transition-metal-catalyzed C–H activation reactions.

1 Introduction

2 The N–O Bond as Internal Oxidant

2.1 The O-Linked Moiety as Leaving Group

2.1.1 N-Oxide

2.1.2 N-Acyloxy

2.1.3 Oxime

2.1.4 N-Methoxy or N-Hydroxy

2.1.5 N-Pivaloyloxy or O-tert-Butyloxycarbonyloxy

2.1.6 Miscellaneous

2.2 The N-Linked Moiety as Leaving Group

3 The N–N Bond as Internal Oxidant

4 The N–S Bond as Internal Oxidant

5 The S–Cl Bond as Internal Oxidant

5 The Si–H Bond as Internal Oxidant

6 Conclusion