Mechanistic Insights and Kinetic Analysis for the Oxidative Hydroxylation of Arylboronic Acids by Visible Light Photoredox Catalysis: A Metal-Free Alternative

2013 ◽  
Vol 135 (36) ◽  
pp. 13286-13289 ◽  
Author(s):  
Spencer P. Pitre ◽  
Christopher D. McTiernan ◽  
Hossein Ismaili ◽  
Juan C. Scaiano
Keyword(s):  
Visible Light ◽  
Kinetic Analysis ◽  
Photoredox Catalysis ◽  
Metal Free ◽  
Arylboronic Acids ◽  
Free Alternative

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.

ChemInform Abstract: Metal Free Visible Light Photoredox Activation of PhI(OAc)2for the Conversion of Arylboronic Acids to Phenols.

ChemInform ◽  
2015 ◽  
Vol 46 (33) ◽  
pp. no-no
Author(s):  
Abhijit Paul ◽  
Debnath Chatterjee ◽  
Rajkamal Rajkamal ◽  
Tanmoy Halder ◽  
Srirupa Banerjee ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Free ◽  
Arylboronic Acids

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

Key Role of π–π Complex in Diary Cross-Coupling between Aryldiazonium Salts and Arylboronic Acids using Photosensitizer-Free Gold/Photoredox Catalysis

2021 ◽  
Author(s):  
Yanhong Liu ◽  
Rong-Xiu Zhu ◽  
Chengbu Liu ◽  
Dongju Zhang
Keyword(s):  
Dft Calculations ◽  
Visible Light ◽  
Cross Coupling ◽  
Photoredox Catalysis ◽  
Arylboronic Acids ◽  
Type Complex ◽  
Free Gold ◽  
Π Complex ◽  
Td Dft

DFT and TD-DFT calculations were performed to better understand the photosensitizer-free visible-light-mediated Au-catalyzed cross-couplings between aryldiazonium salts and arylboronic acids. The π–π type complex between the aryldiazonium salt and the...

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.

Bimetallic Photoredox Catalysis: Visible Light-Promoted Aerobic Hydroxylation of Arylboronic Acids with a Dirhodium(II) Catalyst

2019 ◽  
Vol 85 (4) ◽  
pp. 2040-2047 ◽  
Author(s):  
Hsiang-Ming Yang ◽  
Ming-Lun Liu ◽  
Jing-Wen Tu ◽  
Emily Miura-Stempel ◽  
Michael G. Campbell ◽  
...  
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Arylboronic Acids

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
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