Catalyst-free amination of α-cyanoarylacetates enabled by single-electron transfer

2019 ◽  
Vol 6 (11) ◽  
pp. 1900-1904 ◽  
Author(s):  
Wei Zhang ◽  
Han-Liang Zheng ◽  
Yang Liu ◽  
Ao Yu ◽  
Chen Yang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Catalyst Free

A radical benzylic amination of α-cyanoarylacetates without the assistance of any transition-metal catalysts or external photosensitizers was realized.

scholarly journals N-Heterocyclic Carbene/Magnesium Co-catalyzed Radical Relay Assembly of Aliphatic Keto-nitriles

2020 ◽  
Author(s):  
Lei Chen ◽  
Shiyi Jin ◽  
Jian Gao ◽  
Tongtong Liu ◽  
Yuebo Shao ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Reaction Conditions ◽  
Eda Complex

An N-heterocyclic carbene and magnesium co-catalyzed three-component alkylacylation of alkenes with cycloketone oxime esters and aldehydes was presented. This method displayed good scope generality, providing a transition metal and photo-redox free pathway to access various multi-functionalized aliphatic keto-nitrile structures under mild reaction conditions. Moreover, this strategy is supposed to follow a radical relay mechanism via a single electron transfer (SET) event of Mg/oxime ester/Breslow intermediate ternary electron donating acceptor (EDA) complex.

scholarly journals Intramolecular Oxidative Diaryl Coupling of Tetrasubstituted Diphenylamines for Preparation of Bis(trifluoromethyl) Dimethyl Carbazoles

SynOpen ◽  
2021 ◽  
Author(s):  
Addison M Duda ◽  
Michael T Giurini ◽  
Jason G Gillmore ◽  
Thomas F Guarr
Keyword(s):  
Electron Transfer ◽  
Precious Metal ◽  
Metal Catalysts ◽  
Single Electron ◽  
Hypervalent Iodine ◽  
Single Electron Transfer ◽  
Primary Interest ◽  
Battery Materials ◽  
Precious Metal Catalysts ◽  
Iodine Chemistry

Synthetic preparation of carbazoles can be challenging, requiring ring building strategies and/or precious metal catalysts. Presented herein is a method for preparation of carbazoles with the use of inexpensive and reliable hypervalent iodine chemistry. An oxidative single electron transfer (SET) event initiates cyclization for preparation of our trifluoromethyl carbazoles. This method has been shown to be useful for a variety of bis(trifluoromethyl)carbazole isomers that are of primary interest for use as battery materials.

ChemInform Abstract: Transition-Metal-Free Cross-Coupling Reactions by Single Electron Transfer (SET).

ChemInform ◽  
2014 ◽  
Vol 45 (42) ◽  
pp. no-no
Author(s):  
Suresh Kumar Sythana ◽  
Santhosh Unni ◽  
Yogesh M. Kshirsagar ◽  
Pundlik R. Bhagat
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Cross Coupling ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Coupling Reactions ◽  
Metal Free ◽  
Cross Coupling Reactions

scholarly journals N-Heterocyclic Carbene/Magnesium Co-catalyzed Radical Relay Assembly of Aliphatic Keto-nitriles

2020 ◽  
Author(s):  
Lei Chen ◽  
Shiyi Jin ◽  
Jian Gao ◽  
Tongtong Liu ◽  
Yuebo Shao ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Reaction Conditions ◽  
Eda Complex

An N-heterocyclic carbene and magnesium co-catalyzed three-component alkylacylation of alkenes with cycloketone oxime esters and aldehydes was presented. This method displayed good scope generality, providing a transition metal and photo-redox free pathway to access various multi-functionalized aliphatic keto-nitrile structures under mild reaction conditions. Moreover, this strategy is supposed to follow a radical relay mechanism via a single electron transfer (SET) event of Mg/oxime ester/Breslow intermediate ternary electron donating acceptor (EDA) complex.

scholarly journals Catalyst‐Free Deaminative Functionalizations of Primary Amines by Photoinduced Single‐Electron Transfer

2019 ◽  
Vol 58 (17) ◽  
pp. 5697-5701 ◽  
Author(s):  
Jingjing Wu ◽  
Phillip S. Grant ◽  
Xiabing Li ◽  
Adam Noble ◽  
Varinder K. Aggarwal
Keyword(s):  
Electron Transfer ◽  
Single Electron ◽  
Primary Amines ◽  
Single Electron Transfer ◽  
Catalyst Free

Transition-Metal-Free C(sp3)–H Coupling of Cycloalkanes Enabled by Single-Electron Transfer and Hydrogen Atom Transfer

2021 ◽  
Vol 23 (5) ◽  
pp. 1714-1719
Author(s):  
Linlin Zhang ◽  
Zhengfen Liu ◽  
Xun Tian ◽  
Yujin Zi ◽  
Shengzu Duan ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Transition Metal ◽  
Hydrogen Atom Transfer ◽  
Single Electron ◽  
Atom Transfer ◽  
Single Electron Transfer ◽  
Metal Free
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