Synthesis 2020; 52(09): 1357-1368
DOI: 10.1055/s-0039-1690839
short review
© Georg Thieme Verlag Stuttgart · New York

Recent Developments in Photochemical and Electrochemical Decarboxylative C(sp3)–N Bond Formation

Yue Zheng
,
Xiaoqing Shao
,
Velayudham Ramadoss
,
Lifang Tian
Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. of China   Email: tianlifang@njtech.edu.cn   Email: ias_yhwang@njtech.edu.cn
,
Yahui Wang
Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, P. R. of China   Email: tianlifang@njtech.edu.cn   Email: ias_yhwang@njtech.edu.cn
› Author Affiliations
We thank the National Natural Science Foundation of China (Grant No. 21702105) and the Natural Science Foundation of Jiangsu Province, China (Grant No. BK20170981) for funding.
Further Information

Publication History

Received: 17 January 2020

Accepted after revision: 04 February 2020

Publication Date:
02 March 2020 (online)


Dedicated to Professor Antonio M. Echavarren on the occasion of his 65th birthday

Abstract

Considering the important applications of nitrogen-containing compounds in agrochemical materials and biomolecular drug molecules, research on methods for the construction of C–N bonds quickly and efficiently has become an important topic in synthetic chemistry. Carboxylic acids are inexpensive, stable, and non-toxic substances that are widely present in Nature, which makes them appealing as potential coupling partners for C(sp3)–N bond-forming reactions. Moreover, compared with the well-established transition-metal-catalyzed protocols, the rapid development of photoredox catalysis and electrochemical methods in recent years provides options for chemists to design new synthetic routes. In this short review, we concentrate on the decarboxylative C(sp3)–N coupling reactions mediated by visible light or electricity, with special attention on mechanistic insights.

1 Introduction

2 Photoredox-Mediated Decarboxylative C(sp3)–N Bond Formation

2.1 Intramolecular Decarboxylation

2.2 Intermolecular Decarboxylation

3 Electrochemistry-Induced Decarboxylative C(sp3)–N Bond Formation

3.1 Intramolecular Decarboxylation

3.2 Intermolecular Decarboxylation

4 Conclusions and Outlook