Ligand-to-metal charge transfer of pyridine surface complex on TiO2 for selective dehydrogenative cross-coupling with benzene

2021 ◽  
Author(s):  
Shimpei Naniwa ◽  
Shinichiro Hishitani ◽  
Akira Yamamoto ◽  
Hisao Yoshida
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Cross Coupling ◽  
Light Irradiation ◽  
Surface Complex ◽  
Metal Charge ◽  
Metal Charge Transfer

Dehydrogenative cross-coupling (DCC) between pyridine and benzene proceeded selectively using TiO2 photocatalyst under visible light irradiation at optimized concentrations of the substrates. Visible light induces ligand-to-metal charge transfer (LMCT) between...

Visible-light-induced photocatalytic benzene/cyclohexane cross-coupling utilizing a ligand-to-metal charge transfer benzene complex adsorbed on titanium oxides

2018 ◽  
Vol 8 (8) ◽  
pp. 2046-2050 ◽  
Author(s):  
A. Yamamoto ◽  
T. Ohara ◽  
H. Yoshida
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
High Selectivity ◽  
Cross Coupling ◽  
Titanium Oxides ◽  
Metal Charge ◽  
Metal Charge Transfer

High selectivity was achieved in the photocatalytic cross-coupling of benzene and cyclohexane by photoexcitation of a surface benzene complex.

Modulating charge migration in photoredox organic transformation via exquisite interface engineering

2020 ◽  
Vol 8 (17) ◽  
pp. 8360-8375
Author(s):  
Shuai Xu ◽  
Ming-Hui Huang ◽  
Tao Li ◽  
Zhi-Quan Wei ◽  
Xin Lin ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
High Efficiency ◽  
Light Irradiation ◽  
Interface Engineering ◽  
Organic Transformations ◽  
Charge Migration ◽  
First Time

An ionic polyelectrolyte was for the first time revealed to serve as an unexpected high-efficiency cascade charge transfer mediator toward versatile photoredox organic transformations under visible light irradiation.

scholarly journals Organocatalyzed Photoelectrochemical C−H Amination of Arenes

2021 ◽  
Author(s):  
Zhong-Wei Hou ◽  
Hong Yan ◽  
Jinshuai Song ◽  
Hai-Chao Xu
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Cross Coupling ◽  
Light Irradiation ◽  
Molecular Catalyst ◽  
Halogenated Benzenes ◽  
Undivided Cell ◽  
Chemical Oxidants ◽  
Photoelectrochemical Method

Catalytic C–H/N–H cross-coupling is considered an ideal strategy for accessing anilines and derivatives, but its synthetic execution remains extremely challenging, especially when the exclusion of external oxidants is desired. Report herein is a photoelectrochemical method for the preparation of anilides through C–H/N–H coupling of arenes and carbamates, which employs DDQ as a molecular catalyst. The reactions are conducted in a simple undivided cell with visible-light irradiation and without any need for external chemical oxidants. In addition, the reactions employ arenes as the limiting agent, and are compatible with benzene and halogenated benzenes

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