Theoretical Study on Copper-Catalyzed S-Arylation of Thiophenols with Aryl Halides: Evidence Supporting the LCu(I)-SPh Active Catalyst and Halogen Atom Transfer Mechanism

2013 ◽  
Vol 32 (17) ◽  
pp. 4944-4951 ◽  
Author(s):  
Song-Lin Zhang ◽  
Hui-Jun Fan
Keyword(s):  
Halogen Atom ◽  
Theoretical Study ◽  
Active Catalyst ◽  
Transfer Mechanism ◽  
Aryl Halides ◽  
Atom Transfer

Proposal for halogen atom transfer mechanism for Ullmann O-arylation of phenols with aryl halides

2012 ◽  
Vol 41 (45) ◽  
pp. 13832 ◽  
Author(s):  
Songlin Zhang ◽  
Zhenzhong Zhu ◽  
Yuqiang Ding
Keyword(s):  
Halogen Atom ◽  
Transfer Mechanism ◽  
Aryl Halides ◽  
Atom Transfer

scholarly journals Aminoalkyl radicals as halogen-atom transfer agents for activation of alkyl and aryl halides

Science ◽  
2020 ◽  
Vol 367 (6481) ◽  
pp. 1021-1026 ◽  
Author(s):  
Timothée Constantin ◽  
Margherita Zanini ◽  
Alessio Regni ◽  
Nadeem S. Sheikh ◽  
Fabio Juliá ◽  
...  
Keyword(s):  
Halogen Atom ◽  
Building Blocks ◽  
Aryl Halides ◽  
Atom Transfer ◽  
Reduction Potentials ◽  
Tributyltin Hydride ◽  
Organic Halides ◽  
Wide Range ◽  
Carbon Carbon Bonds ◽  
Radical Processes

Organic halides are important building blocks in synthesis, but their use in (photo)redox chemistry is limited by their low reduction potentials. Halogen-atom transfer remains the most reliable approach to exploit these substrates in radical processes despite its requirement for hazardous reagents and initiators such as tributyltin hydride. In this study, we demonstrate that α-aminoalkyl radicals, easily accessible from simple amines, promote the homolytic activation of carbon-halogen bonds with a reactivity profile mirroring that of classical tin radicals. This strategy conveniently engages alkyl and aryl halides in a wide range of redox transformations to construct sp3-sp3, sp3-sp2, and sp2-sp2 carbon-carbon bonds under mild conditions with high chemoselectivity.

Base-promoted aryl–bromine bond cleavage with cobalt(ii) porphyrins via a halogen atom transfer mechanism

2014 ◽  
Vol 43 (21) ◽  
pp. 7771 ◽  
Author(s):  
Chun Ran Liu ◽  
Ying Ying Qian ◽  
Kin Shing Chan
Keyword(s):  
Halogen Atom ◽  
Bond Cleavage ◽  
Transfer Mechanism ◽  
Atom Transfer

Theoretical study on the charge transfer mechanism at donor/acceptor interface: Why TTF/TCNQ is inadaptable to photovoltaics?

2016 ◽  
Vol 145 (24) ◽  
pp. 244705 ◽  
Author(s):  
Shuang-Bao Li ◽  
Yun Geng ◽  
Yu-Ai Duan ◽  
Guang-Yan Sun ◽  
Min Zhang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Theoretical Study ◽  
Transfer Mechanism ◽  
Charge Transfer Mechanism ◽  
Donor Acceptor
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