scholarly journals Organic photoredox catalysis for the oxidation of silicates: applications in radical synthesis and dual catalysis

2016 ◽  
Vol 52 (64) ◽  
pp. 9877-9880 ◽  
Author(s):  
Christophe Lévêque ◽  
Ludwig Chenneberg ◽  
Vincent Corcé ◽  
Cyril Ollivier ◽  
Louis Fensterbank
Keyword(s):  
Organic Dye ◽  
Photoredox Catalysis ◽  
Alkyl Radicals ◽  
Metal Free ◽  
Dual Catalysis

Metal free photooxidation of alkyl bis(catecholato)silicates with the organic dye 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyano-benzene (4CzIPN) allows the smooth formation of alkyl radicals.

Metal-free oxidative phosphinylation of aryl alkynes to β-ketophosphine oxides via visible-light photoredox catalysis

2016 ◽  
Vol 6 (2) ◽  
pp. 413-416 ◽  
Author(s):  
Mei-jie Bu ◽  
Guo-ping Lu ◽  
Chun Cai
Keyword(s):  
Visible Light ◽  
Organic Dye ◽  
Photoredox Catalysis ◽  
Metal Free ◽  
Mild Conditions ◽  
Aryl Alkynes

A visible-light-induced oxidative phosphinylation of arylacetylenes catalyzed by an inexpensive organic dye was demonstrated to be effective under mild conditions.

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

scholarly journals Carbonylation of Alkyl Radicals Derived from Organosilicates through Visible‐Light Photoredox Catalysis

2019 ◽  
Vol 58 (6) ◽  
pp. 1789-1793 ◽  
Author(s):  
Alex Cartier ◽  
Etienne Levernier ◽  
Vincent Corcé ◽  
Takahide Fukuyama ◽  
Anne‐Lise Dhimane ◽  
...  
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Alkyl Radicals

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 desulfurizing radical reductive C–C coupling of thiols and alkenes

2019 ◽  
Vol 55 (71) ◽  
pp. 10583-10586 ◽  
Author(s):  
Qixue Qin ◽  
Weijing Wang ◽  
Cheng Zhang ◽  
Song Song ◽  
Ning Jiao
Keyword(s):  
Alkyl Radicals ◽  
Metal Free

An intermolecular reductive C–C coupling of electrophilic alkyl radicals and alkenes has been developed.

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