Metal‐free Multi‐component Sulfur Dioxide Insertion Reaction Leading to Quinoxalin‐2‐one‐containing Vinyl Sulfones under Visible‐light Photoredox Catalysis

2021 ◽  
Author(s):  
Yufen Lv ◽  
Jinyun Luo ◽  
Muze  Lin ◽  
Lin He ◽  
Hui-Lan Yue ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Insertion Reaction ◽  
Photoredox Catalysis ◽  
Metal Free

Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

2019 ◽  
Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Practical Approach ◽  
Hypervalent Iodine ◽  
Radical Mechanism ◽  
Photoredox Catalysis ◽  
Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

Phthalide synthesis through dehydrogenated lactonization of the C(sp3)–H bond by photoredox catalysis

2021 ◽  
Author(s):  
Hui Liu ◽  
Chao Liu ◽  
Shanyi Chen ◽  
Qihong Lai ◽  
Yulin Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Room Temperature ◽  
Photoredox Catalysis ◽  
Metal Free

An efficient method for the direct oxidative lactonization of the C(sp3)–H bonds of benzyl via visible-light-induced photoredox catalysis. The metal-free protocol delivers diverse phthalides using O2 as the sole terminal oxidant at room temperature.

scholarly journals Trifluoromethylation of Disubstituted Morpholines by Metal-Free Visible Light Photoredox Catalysis

2016 ◽  
Vol 28 (10) ◽  
pp. 2159-2163 ◽  
Author(s):  
Vishal Srivastava ◽  
Pravin K. Singh ◽  
Praveen P. Singh
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Metal Free

Metal-free photocatalytic trifluoromethylative pyridylation of unactivated alkenes

2018 ◽  
Vol 20 (22) ◽  
pp. 5209-5214 ◽  
Author(s):  
Yu-Tao He ◽  
Dahye Kang ◽  
Inwon Kim ◽  
Sungwoo Hong
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Photoredox Catalysis ◽  
Metal Free

An efficient, transition metal-free trifluoromethylative pyridylation of unactivated alkenes was achieved by visible-light-induced photoredox catalysis.

A metal-free route to alkynyl sulfones under photoinduced conditions with the insertion of sulfur dioxide

2020 ◽  
Vol 22 (6) ◽  
pp. 1906-1910 ◽  
Author(s):  
Xinxing Gong ◽  
Min Yang ◽  
Jin-Biao Liu ◽  
Fu-Sheng He ◽  
Xiaona Fan ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Metal Free

A metal-free route to alkynyl sulfones under photoinduced conditions is accomplished, starting from 4-alkyl Hantzsch esters, sulfur dioxide, and alkynyl bromides under visible light irradiation at room temperature.

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.

Continuous Flow α-Trifluoromethylation of Ketones by Metal-Free Visible Light Photoredox Catalysis

2014 ◽  
Vol 16 (3) ◽  
pp. 896-899 ◽  
Author(s):  
David Cantillo ◽  
Oscar de Frutos ◽  
Juan A. Rincón ◽  
Carlos Mateos ◽  
C. Oliver Kappe
Keyword(s):  
Visible Light ◽  
Continuous Flow ◽  
Photoredox Catalysis ◽  
Metal Free

ChemInform Abstract: Metal-Free, Room-Temperature, Radical Alkoxycarbonylation of Aryldiazonium Salts Through Visible-Light Photoredox Catalysis.

ChemInform ◽  
2015 ◽  
Vol 46 (25) ◽  
pp. no-no
Author(s):  
Wei Guo ◽  
Liang-Qiu Lu ◽  
Yue Wang ◽  
Ya-Ni Wang ◽  
Jia-Rong Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Photoredox Catalysis ◽  
Metal Free

Metal-Free, Room-Temperature, Radical Alkoxycarbonylation of Aryldiazonium Salts through Visible-Light Photoredox Catalysis

2014 ◽  
Vol 54 (7) ◽  
pp. 2265-2269 ◽  
Author(s):  
Wei Guo ◽  
Liang-Qiu Lu ◽  
Yue Wang ◽  
Ya-Ni Wang ◽  
Jia-Rong Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Photoredox Catalysis ◽  
Metal Free

Fluoroalkylselenolation of Alkyl Silanes/Trifluoroborates under Metal-Free Visible-Light Photoredox Catalysis

2019 ◽  
Vol 2020 (10) ◽  
pp. 1559-1566 ◽  
Author(s):  
Clément Ghiazza ◽  
Lhoussain Khrouz ◽  
Thierry Billard ◽  
Cyrille Monnereau ◽  
Anis Tlili
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Metal Free
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