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 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.

Metal-Free Regioselective Alkylation of Imidazo[1,2-a]pyridines with N-Hydroxyphthalimide Esters under Organic Photoredox Catalysis

Synlett ◽  
2020 ◽  
Vol 31 (04) ◽  
pp. 363-368 ◽  
Author(s):  
Can Jin ◽  
Bin Sun ◽  
Tengwei Xu ◽  
Liang Zhang ◽  
Rui Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Carboxylic Acids ◽  
Room Temperature ◽  
Eosin Y ◽  
Photoredox Catalysis ◽  
Mechanistic Studies ◽  
Metal Free ◽  
Regioselective Alkylation ◽  
Decarboxylative Coupling ◽  
Aliphatic Carboxylic Acids

A visible-light-induced direct C–H alkylation of imidazo[1,2-a]pyridines has been developed. It proceeds at room temperature by employing inexpensive Eosin Y as a photocatalyst and alkyl N-hydroxyphthalimide (NHP) esters as alkylation reagents. A variety of NHP esters derived from aliphatic carboxylic acids (primary, secondary, and tertiary) were tolerated in this protocol, giving the corresponding C-5-alkylated products in moderate to excellent yields. Mechanistic studies indicate that a radical decarboxylative coupling pathway was involved in this process.

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