Synthesis 2019; 51(16): 3021-3054
DOI: 10.1055/s-0037-1611812
review
© Georg Thieme Verlag Stuttgart · New York

Visible-Light-Driven Organic Photochemical Reactions in the Absence of External Photocatalysts

Yi Wei
a   CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, P. R. of China   Email: luliangqiu@mail.ccnu.edu.cn
,
Quan-Quan Zhou
a   CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, P. R. of China   Email: luliangqiu@mail.ccnu.edu.cn
,
Fen Tan*
b   Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients, Hubei University of Education, Wuhan, Hubei, 430205, P. R. of China   Email: tanfen@hue.edu.cn
,
Liang-Qiu Lu*
a   CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, P. R. of China   Email: luliangqiu@mail.ccnu.edu.cn
,
Wen-Jing Xiao
a   CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei, 430079, P. R. of China   Email: luliangqiu@mail.ccnu.edu.cn
› Author Affiliations
We are grateful to the National Natural Science Foundation of China (Grants No. 21822103, 21820102003, 21772052, 21772053, 21572074, 21472057, and 21602052), the Program of Introducing Talents of Discipline to Universities of China (111 Program) (Grant No. B17019), the Natural Science Foundation of Hubei Province (Grant No. 2017AHB047), and the International Joint Research Center for Intelligent Biosensing Technology and Health, and College Outstanding Young Scientific and Technological Innovation Team of Hubei Province (Grant No. T201718) for support of this research.
Further Information

Publication History

Received: 22 February 2019

Accepted after revision: 25 March 2019

Publication Date:
20 May 2019 (online)


Abstract

Visible-light-driven organic photochemical reactions have attracted substantial attention from the synthetic community. Typically, catalytic quantities of photosensitizers, such as transition metal complexes, organic dyes, or inorganic semiconductors, are necessary to absorb visible light and trigger subsequent organic transformations. Recently, in contrast to these photocatalytic processes, a variety of photocatalyst-free organic photochemical transformations have been exploited for the efficient formation of carbon–carbon and carbon–heteroatom bonds. In addition to not requiring additional photocatalysts, they employ low-energy visible light irradiation, have mild reaction conditions, and enable broad substrate diversity and functional group tolerance. This review will focus on a summary of representative work in this field in terms of different photoexcitation modes.

1 Introduction

2 Visible Light Photoexcitation of a Single Substrate

3 Visible Light Photoexcitation of Reaction Intermediates

4 Visible Light Photoexcitation of EDA Complexes between Substrates

5 Visible Light Photoexcitation of EDA Complexes between Substrates and Reaction Intermediates

6 Visible Light Photoexcitation of Products

7 Conclusion and Outlook