Synthesis 2021; 53(20): 3716-3724
DOI: 10.1055/s-0040-1720382
short review

Recent Progress in Amination Enabled by Transition-Metal-Free C(sp2)–O/C(sp2)–S Bond Cleavage Strategy

Shen-Huan Li
a   Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, Hunan 410082, P. R. of China
,
Cheng-Yu Long
a   Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, Hunan 410082, P. R. of China
,
Xin-Ge Yang
b   College of Chemistry and Chemical Engineering, Linyi University, Linyi, Shangdong, 276000, P. R. of China
,
a   Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, Hunan 410082, P. R. of China
› Author Affiliations
We would like to thank the funding supported by National Key Research and Development Program of China (2018YFA0902300) and Huxiang Youth Talent Support Program (2019RS2022).


Abstract

Recently, intense efforts have been dedicated to the development of novel synthetic strategies to access aromatic amines due to their importance in the pharmaceuticals, agrochemicals, materials, and natural product areas. Although numerous transition-metal-catalyzed C–N formation strategies have been described for the preparation of aromatic amines in the past few decades, complementary methods under transition-metal-free conditions are still required. We present the recent advances in the exploration of innovative amination approaches via C(sp2)–O/C(sp2)–S bond cleavage in this review.

1 Introduction

2 Stoichiometric Base-Promoted Amination

3 Base-Catalyzed Amination

4 Photoredox-Catalyzed Amination

5 Acid-Promoted Amination

6 Conclusion and Perspectives



Publication History

Received: 29 May 2021

Accepted after revision: 18 June 2021

Article published online:
17 August 2021

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