ChemInform Abstract: Potassium Hydroxide/Dimethyl Sulfoxide Superbase-Promoted Transition Metal-Free Synthesis of 2-Substituted Benzothiophenes under Visible Light.

ChemInform ◽  
2016 ◽  
Vol 47 (37) ◽  
Author(s):  
Li Gao ◽  
Bin Chang ◽  
Wenzhao Qiu ◽  
Lele Wang ◽  
Xianzhi Fu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Metal Free

Potassium Hydroxide/Dimethyl Sulfoxide Superbase-Promoted Transition Metal-Free Synthesis of 2-Substituted Benzothiophenes under Visible Light

2016 ◽  
Vol 358 (8) ◽  
pp. 1202-1207 ◽  
Author(s):  
Li Gao ◽  
Bin Chang ◽  
Wenzhao Qiu ◽  
Lele Wang ◽  
Xianzhi Fu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Metal Free

ChemInform Abstract: Dimethyl Sulfoxide/Potassium Hydroxide: A Superbase for the Transition Metal-Free Preparation of Cross-Coupling Products.

ChemInform ◽  
2011 ◽  
Vol 42 (14) ◽  
pp. no-no
Author(s):  
Yu Yuan ◽  
Isabelle Thome ◽  
Seok Hwan Kim ◽  
Duanteng Chen ◽  
Astrid Beyer ◽  
...  
Keyword(s):  
Transition Metal ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Cross Coupling ◽  
Metal Free

scholarly journals Corrigendum: Dimethyl Sulfoxide/Potassium Hydroxide: A Superbase for the Transition Metal-Free Preparation of Cross-Coupling Products

2010 ◽  
Vol 352 (18) ◽  
pp. 3112-3112
Author(s):  
Yu Yuan ◽  
Isabelle Thomé ◽  
Seok Hwan Kim ◽  
Duanteng Chen ◽  
Astrid Beyer ◽  
...  
Keyword(s):  
Transition Metal ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Cross Coupling ◽  
Metal Free

Dimethyl Sulfoxide/Potassium Hydroxide: A Superbase for the Transition Metal-Free Preparation of Cross-Coupling Products

2010 ◽  
Vol 352 (17) ◽  
pp. 2892-2898 ◽  
Author(s):  
Yu Yuan ◽  
Isabelle Thomé ◽  
Seok Hwan Kim ◽  
Duanteng Chen ◽  
Astrid Beyer ◽  
...  
Keyword(s):  
Transition Metal ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Cross Coupling ◽  
Metal Free

Transition Metal-Free Stereoselective α-Vinylation of Cyclic Ketones with Arylacetylenes in the Superbasic Catalytic Triad Potassium Hydroxide/tert-Butyl Alcohol/Dimethyl Sulfoxide

2012 ◽  
Vol 354 (9) ◽  
pp. 1813-1818 ◽  
Author(s):  
Boris A. Trofimov ◽  
Elena Yu. Schmidt ◽  
Nadezhda V. Zorina ◽  
Elena V. Ivanova ◽  
Igor' A. Ushakov ◽  
...  
Keyword(s):  
Transition Metal ◽  
Dimethyl Sulfoxide ◽  
Potassium Hydroxide ◽  
Catalytic Triad ◽  
Butyl Alcohol ◽  
Cyclic Ketones ◽  
Metal Free ◽  
Tert Butyl ◽  
Tert Butyl Alcohol

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.

Highly chemoselective deoxygenation of N-heterocyclic N-oxides under transition metal-free conditions

2021 ◽  
Vol 19 (16) ◽  
pp. 3735-3742
Author(s):  
Se Hyun Kim ◽  
Ju Hyeon An ◽  
Jun Hee Lee
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Eosin Y ◽  
Metal Free ◽  
Simple Protocol

Here, we provide an operationally simple protocol for the highly chemoselective deoxygenation of various functionalized N-heterocyclic N-oxides under visible light-mediated photoredox conditions with Na2-eosin Y as an organophotocatalyst.

New Avenues in Radical Trifluoromethylselenylation with ­Trifluoromethyl Tolueneselenosulfonate

Synlett ◽  
2018 ◽  
Vol 30 (07) ◽  
pp. 777-782 ◽  
Author(s):  
Clément Ghiazza ◽  
Cyrille Monnereau ◽  
Lhoussain Khrouz ◽  
Maurice Médebielle ◽  
Thierry Billard ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Transition Metal ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Diazonium Salts ◽  
Metal Free ◽  
Luminescence Measurement ◽  
Stable Reagent ◽  
Shelf Stable

We demonstrated that the shelf-stable reagent trifluoromethyl tolueneselenosulfonate can be involved in radical trifluoromethylselenylation. Upon visible-light irradiation, the homolysis of the reagent could take place at room temperature. This finding is explored for unprecedented C(sp2)–SeCF3 and C(sp3)–SeCF3 processes under transition-metal-free conditions. Mechanistic investigations, including cyclic voltammetry, luminescence measurement, and EPR studies, allowed the proposal of plausible mechanisms.1 Introduction.2 Reactivity of Reagent I with Diazonium Salts3 Reactivity of Reagent I with Alkenes and Alkynes4 Conclusion

scholarly journals Photocatalytic Synthesis of Tetra-Substituted Furans Promoted by Carbon Dioxide

2021 ◽  
Author(s):  
Ya-Ming Tian ◽  
Huaiju Wang ◽  
Ritu Ritu ◽  
Burkhard Koenig
Keyword(s):  
Carbon Dioxide ◽  
Transition Metal ◽  
Visible Light ◽  
Metal Free ◽  
Mild Conditions ◽  
Simple Protocol ◽  
Visible Light Driven ◽  
Substituted Furans ◽  
Photocatalytic Synthesis

We report a simple protocol for the transition metal-free, visible-light-driven conversion of 1,3-diketones to tetra-substituted furan skeleton compounds in carbon dioxide (CO2) atmosphere under mild conditions. It was found that...

Visible light-mediated transition metal-free esterification of amides with boronic acids

2020 ◽  
Vol 61 (43) ◽  
pp. 152444
Author(s):  
Hao Ding ◽  
Wan-Ying Qi ◽  
Jing-Song Zhen ◽  
Qiuping Ding ◽  
Yong Luo
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Boronic Acids ◽  
Metal Free
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