scholarly journals Cascade cyclization reactions of alkylidenecyclopropanes for the construction of polycyclic lactams and lactones by visible light photoredox catalysis

2020 ◽  
Vol 7 (2) ◽  
pp. 374-379 ◽  
Author(s):  
Mintao Chen ◽  
Yin Wei ◽  
Min Shi
Keyword(s):  
Visible Light ◽  
Membered Ring ◽  
Visible Light Photocatalysis ◽  
Photoredox Catalysis ◽  
Cyclization Reactions ◽  
Cascade Cyclization

A facile method for the synthesis of seven- and eight-membered ring-containing polycyclic lactams and lactones by visible light photocatalysis has been developed.

Aroyl chlorides as novel acyl radical precursors via visible-light photoredox catalysis

2017 ◽  
Vol 4 (7) ◽  
pp. 1331-1335 ◽  
Author(s):  
Shi-Ming Xu ◽  
Jian-Qiang Chen ◽  
Dan Liu ◽  
Yun Bao ◽  
Yong-Min Liang ◽  
...  
Keyword(s):  
Visible Light ◽  
Visible Light Photocatalysis ◽  
Photoredox Catalysis ◽  
Acyl Radical ◽  
First Time

Abundant and inexpensive aroyl chlorides have been employed for the first time as novel acyl radical precursors in visible-light photocatalysis.

Visible light photocatalysis in synthesis of pharmaceutically relevant heterocyclic scaffolds

2022 ◽  
Author(s):  
Vishal Srivastava ◽  
Pravin Kumar Singh ◽  
Shraddha Tivari ◽  
Praveen Pratap Singh
Keyword(s):  
Natural Products ◽  
Visible Light ◽  
Chemical Bond ◽  
Organic Synthesis ◽  
Bond Formation ◽  
Visible Light Photocatalysis ◽  
Photoredox Catalysis ◽  
Chemical Bond Formation

Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic synthesis, demonstrating the importance of a variety of chemical bond formation methods. Natural products, physiologically...

scholarly journals The chemistry of amine radical cations produced by visible light photoredox catalysis

2013 ◽  
Vol 9 ◽  
pp. 1977-2001 ◽  
Author(s):  
Jie Hu ◽  
Jiang Wang ◽  
Theresa H Nguyen ◽  
Nan Zheng
Keyword(s):  
Visible Light ◽  
Radical Cations ◽  
Reactive Intermediates ◽  
Visible Light Photocatalysis ◽  
Photoredox Catalysis ◽  
Iminium Ions ◽  
Distonic Ions ◽  
Synthetic Intermediates

Amine radical cations are highly useful reactive intermediates in amine synthesis. They have displayed several modes of reactivity leading to some highly sought-after synthetic intermediates including iminium ions, α-amino radicals, and distonic ions. One appealing method to access amine radical cations is through one-electron oxidation of the corresponding amines under visible light photoredox conditions. This approach and subsequent chemistries are emerging as a powerful tool in amine synthesis. This article reviews synthetic applications of amine radical cations produced by visible light photocatalysis.

Excited radical anions and excited anions in visible light photoredox catalysis

2019 ◽  
Vol 4 (12) ◽  
Author(s):  
Indrajit Ghosh
Keyword(s):  
Visible Light ◽  
Organic Synthesis ◽  
Transition Metal Complexes ◽  
Organic Dyes ◽  
Visible Light Photocatalysis ◽  
Radical Anions ◽  
Photoredox Catalysis ◽  
Inorganic Semiconductors ◽  
Redox Active ◽  
Excited Radical

Abstract Over the last decade, visible light photocatalysis has dramatically increased the arsenal of methods for organic synthesis and changed the way we activate molecules for chemical reactions. Polypyridyl transition metal complexes, redox-active organic dyes, and inorganic semiconductors are typically used as photocatalysts for such transformations. This chapter reviews the applications of radical anions and anions as photosensitizers in visible light photoredox catalysis.

Synthesis of trifluoroalkyl or difluoroalkyl phenanthridine derivatives via cascade reaction using an intramolecular cyano group as a radical acceptor under photoredox catalysis

2018 ◽  
Vol 16 (3) ◽  
pp. 414-423 ◽  
Author(s):  
Xu Liu ◽  
Zhongjie Wu ◽  
Zeguo Zhang ◽  
Ping Liu ◽  
Peipei Sun
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Cyano Group ◽  
Cascade Reaction ◽  
Light Irradiation ◽  
Photoredox Catalysis ◽  
Cascade Cyclization ◽  
Radical Acceptor ◽  
Cyclization Process

In the presence of Ru(phen)3Cl2 or fac-Ir(ppy)3 under visible-light irradiation, the addition of fluorinated radicals to N-arylacrylamides followed by an intramolecular cyano group insertion cascade cyclization process produced the target compounds in moderate to good yields.

Iodine/Visible Light Photocatalysis for Activation of Alkynes for Electrophilic Cyclization Reactions

ACS Catalysis ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 4093-4099 ◽  
Author(s):  
Yuliang Liu ◽  
Bin Wang ◽  
Xiaofeng Qiao ◽  
Chen-Ho Tung ◽  
Yifeng Wang
Keyword(s):  
Visible Light ◽  
Electrophilic Cyclization ◽  
Visible Light Photocatalysis ◽  
Cyclization Reactions

Cascade cyclization of glycine derivatives with β-ketoesters for polysubstituted 1,4-dihydropyridines by visible light photoredox catalysis

Tetrahedron ◽  
2020 ◽  
Vol 76 (33) ◽  
pp. 131353
Author(s):  
Xiao Zhu ◽  
Zhi-Qiang Zhu ◽  
Dong Guo ◽  
Shan Liu ◽  
Jiu-Jian Ji ◽  
...  
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Cascade Cyclization ◽  
Glycine Derivatives

Synthesis of indolo[2,1-a]isoquinoline derivatives via visible-light-induced radical cascade cyclization reactions

2019 ◽  
Vol 55 (42) ◽  
pp. 5922-5925 ◽  
Author(s):  
Yun-Long Wei ◽  
Jian-Qiang Chen ◽  
Bo Sun ◽  
Peng-Fei Xu
Keyword(s):  
Visible Light ◽  
Core Structure ◽  
Cyclization Reactions ◽  
Cascade Cyclization ◽  
Radical Cascade ◽  
Isoquinoline Derivatives

We describe a photocatalyzed transformation for the synthesis of the indolo[2,1-a]isoquinoline core structure.

ChemInform Abstract: Tin-Free Radical Cyclization Reactions Initiated by Visible Light Photoredox Catalysis.

ChemInform ◽  
2010 ◽  
Vol 41 (45) ◽  
pp. no-no
Author(s):  
Joseph W Tucker ◽  
John D. Nguyen ◽  
Jagan M. R. Narayanam ◽  
Scott W. Krabbe ◽  
Corey R. J. Stephenson
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Radical Cyclization ◽  
Photoredox Catalysis ◽  
Cyclization Reactions

Tin-free radical cyclization reactions initiated by visible light photoredox catalysis

2010 ◽  
Vol 46 (27) ◽  
pp. 4985 ◽  
Author(s):  
Joseph W. Tucker ◽  
John D. Nguyen ◽  
Jagan M. R. Narayanam ◽  
Scott W. Krabbe ◽  
Corey R. J. Stephenson
Keyword(s):  
Free Radical ◽  
Visible Light ◽  
Radical Cyclization ◽  
Photoredox Catalysis ◽  
Cyclization Reactions
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