Visible light photoredox catalysis: conversion of a mixture of thiophenols and nitriles into 2-substituted benzothiazoles via consecutive C–S and C–N bond formation reactions

2018 ◽  
Vol 5 (9) ◽  
pp. 1527-1531 ◽  
Author(s):  
Palani Natarajan ◽  
Manjeet Manjeet ◽  
Muskan Muskan ◽  
Navpreet Kaur Brar ◽  
Jaskamal Jot Kaur
Keyword(s):  
Visible Light ◽  
Bond Formation ◽  
Eosin Y ◽  
Photoredox Catalysis ◽  
Alkyl Aryl ◽  
Air Atmosphere ◽  
Aryl Nitriles ◽  
Bond Formation Reactions

A novel, visible-light-mediated method for the synthesis of 2-substituted benzothiazoles from thiophenols and alkyl/aryl nitriles in the presence of eosin Y under air atmosphere is disclosed.

Organic photoredox catalysis enabled cross-coupling of arenediazonium and sulfinate salts: synthesis of (un)symmetrical diaryl/alkyl aryl sulfones

2019 ◽  
Vol 17 (19) ◽  
pp. 4761-4766 ◽  
Author(s):  
Ruchi Chawla ◽  
Lal Dhar S. Yadav
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Cross Coupling ◽  
Eosin Y ◽  
Photoredox Catalysis ◽  
Alkyl Aryl

Transition-metal- and oxidant/reductant-free visible-light-mediated synthesis of (un)symmetrical diaryl/alkyl aryl sulfones from aryl diazonium and sulfinate salts employing eosin Y as an organo-photoredox catalyst is reported.

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...

ChemInform Abstract: Room Temperature C-P Bond Formation Enabled by Merging Nickel Catalysis and Visible-Light-Induced Photoredox Catalysis.

ChemInform ◽  
2015 ◽  
Vol 46 (32) ◽  
pp. no-no
Author(s):  
Jun Xuan ◽  
Ting-Ting Zeng ◽  
Jia-Rong Chen ◽  
Liang-Qiu Lu ◽  
Wen-Jing Xiao
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Bond Formation ◽  
Nickel Catalysis ◽  
Photoredox Catalysis

Metal-free desilylative C–C bond formation by visible-light photoredox catalysis

2019 ◽  
Vol 55 (20) ◽  
pp. 2980-2983 ◽  
Author(s):  
Mustafa Uygur ◽  
Tobias Danelzik ◽  
Olga García Mancheño
Keyword(s):  
Visible Light ◽  
Bond Formation ◽  
Photoredox Catalysis ◽  
Metal Free

A novel metal-free desilylative C–C bond formation from simple organosilanes by visible-light acridinium photoredox catalysis is presented.

Visible light-mediated C P bond formation reactions

2019 ◽  
Vol 64 (5) ◽  
pp. 337-350 ◽  
Author(s):  
Bao-Gui Cai ◽  
Jun Xuan ◽  
Wen-Jing Xiao
Keyword(s):  
Visible Light ◽  
Bond Formation ◽  
Bond Formation Reactions

Room Temperature CP Bond Formation Enabled by Merging Nickel Catalysis and Visible-Light-Induced Photoredox Catalysis

2015 ◽  
Vol 21 (13) ◽  
pp. 4962-4965 ◽  
Author(s):  
Jun Xuan ◽  
Ting-Ting Zeng ◽  
Jia-Rong Chen ◽  
Liang-Qiu Lu ◽  
Wen-Jing Xiao
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Bond Formation ◽  
Nickel Catalysis ◽  
Photoredox Catalysis

scholarly journals Recent Advances in C-F Bond Cleavage Enabled by Visible Light Photoredox Catalysis

Molecules ◽  
2021 ◽  
Vol 26 (22) ◽  
pp. 7051
Author(s):  
Lei Zhou
Keyword(s):  
Visible Light ◽  
Future Development ◽  
Bond Cleavage ◽  
Bond Formation ◽  
Environmentally Benign ◽  
Personal Perspective ◽  
Photoredox Catalysis ◽  
Recent Advances ◽  
The Future ◽  
The Creation

The creation of new bonds via C-F bond cleavage of readily available per- or oligofluorinated compounds has received growing interest. Using such a strategy, a myriad of valuable partially fluorinated products can be prepared, which otherwise are difficult to make by the conventional C-F bond formation methods. Visible light photoredox catalysis has been proven as an important and powerful tool for defluorinative reactions due to its mild, easy to handle, and environmentally benign characteristics. Compared to the classical C-F activation that proceeds via two-electron processes, radicals are the key intermediates using visible light photoredox catalysis, providing new modes for the cleavage of C-F bonds. In this review, a summary of the visible light-promoted C-F bond cleavage since 2018 was presented. The contents were classified by the fluorosubstrates, including polyfluorinated arenes, gem-difluoroalkenes, trifluoromethyl arenes, and trifluoromethyl alkenes. An emphasis is placed on the discussion of the mechanisms and limitations of these reactions. Finally, my personal perspective on the future development of this rapidly emerging field was provided.

scholarly journals Eosin Y-catalyzed visible-light-mediated aerobic oxidative cyclization of N,N-dimethylanilines with maleimides

2015 ◽  
Vol 11 ◽  
pp. 425-430 ◽  
Author(s):  
Zhongwei Liang ◽  
Song Xu ◽  
Wenyan Tian ◽  
Ronghua Zhang
Keyword(s):  
Visible Light ◽  
Oxidative Cyclization ◽  
Eosin Y ◽  
Efficient Synthesis ◽  
One Pot ◽  
Bond Functionalization ◽  
Metal Free ◽  
Mild Conditions ◽  
Simple Strategy ◽  
Air Atmosphere

A novel and simple strategy for the efficient synthesis of the corresponding tetrahydroquinolines from N,N-dimethylanilines and maleimides using visible light in an air atmosphere in the presence of Eosin Y as a photocatalyst has been developed. The metal-free protocol involves aerobic oxidative cyclization via sp3 C–H bond functionalization process to afford good yields in a one-pot procedure under mild conditions.

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