Single electron transfer-induced coupling of alkynylzinc reagents with aryl and alkenyl iodides

2016 ◽  
Vol 52 (97) ◽  
pp. 14019-14022 ◽  
Author(s):  
Keisho Okura ◽  
Hitomi Kawashima ◽  
Fumiko Tamakuni ◽  
Naoya Nishida ◽  
Eiji Shirakawa
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Transition Metal Catalysis ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Metal Catalysis ◽  
First Time

An alkynyl–aryl coupling without the aid of transition metal catalysis has been achieved for the first time.

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.

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

Applications of ytterbium(II) reagent as Grignard reagent and single electron transfer reagent in the synthesis of 3-substituted-2-oxindoles

Synthesis ◽  
2021 ◽  
Author(s):  
Pengkai Wang ◽  
yan xu cao ◽  
Songlin Zhang
Keyword(s):  
Electron Transfer ◽  
Grignard Reagent ◽  
Nucleophilic Reagent ◽  
Point Of View ◽  
Single Electron ◽  
Single Electron Transfer ◽  
One Pot ◽  
First Time ◽  
Isatin Derivatives

The utilities of ytterbium(II) reagent, both as nucleophilic reagent and single electron transfer reagent in the reaction of isatin derivatives with ytterbium(II) reagent are reported for the first time in this paper. From a synthetic point of view, a general, efficient, and experimentally simple one-pot method for preparation of 3-substituted-2-oxindoles was developed.

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.

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

Aromatic substitutions of arenediazonium salts via metal catalysis, single electron transfer, and weak base mediation

2018 ◽  
Vol 16 (27) ◽  
pp. 4942-4953 ◽  
Author(s):  
Denis Koziakov ◽  
Guojiao Wu ◽  
Axel Jacobi von Wangelin
Keyword(s):  
Electron Transfer ◽  
Single Electron ◽  
Single Electron Transfer ◽  
Weak Base ◽  
Metal Catalysis ◽  
Hazard Potential ◽  
Recent Developments ◽  
Arenediazonium Salts ◽  
Operational Simplicity

Radical aromatic substitutions of arenediazonium salts can be initiated by various methods. The recent developments of weak base-mediated protocols provide great advantages over conventional metal-mediated or photoredox reactions by their operational simplicity, price, hazard potential and scalability.

Sign in / Sign up

Export Citation Format

Share Document