Femtosecond investigation of single-electron transfer and radical reactions in aqueous media and bioaggregate-mimetic systems

1990 ◽  
Vol 7 (8) ◽  
pp. 1528 ◽  
Author(s):  
Y. Gauduel ◽  
S. Pommeret ◽  
A. Migus ◽  
N. Yamada ◽  
A. Antonetti
Keyword(s):  
Electron Transfer ◽  
Aqueous Media ◽  
Single Electron ◽  
Radical Reactions ◽  
Single Electron Transfer

scholarly journals Cascades, Catalysis and Chiral Ligand Control with SmI2; The Rebirth of a Reagent

2020 ◽  
Vol 74 (1) ◽  
pp. 18-22
Author(s):  
Áron Péter ◽  
David J. Procter
Keyword(s):  
Electron Transfer ◽  
Cascade Reactions ◽  
Single Electron ◽  
Radical Reactions ◽  
Chiral Ligand ◽  
Single Electron Transfer ◽  
Recent Developments ◽  
Radical Cascade

This review focuses on recent developments from our laboratory in the field of radical reactions mediated by the archetypal reductive single electron transfer (SET) reagent, SmI2. Namely, we have expanded the scope of reducible carbonyl moieties to esters and amides and have exploited the resultant ketyl radicals in radical cascade reactions that generate unprecedented scaffolds. Moreover, we have taken the first steps to address the long-standing challenges of catalysis and chiral ligand control associated with the reagent.

scholarly journals Chiral Nitroarenes as Enantioselective Single-Electron-Transfer Oxidants for Carbene-Catalyzed Radical Reactions

2019 ◽  
Vol 21 (18) ◽  
pp. 7440-7444 ◽  
Author(s):  
Hongling Wang ◽  
Yuhuang Wang ◽  
Xingkuan Chen ◽  
Chengli Mou ◽  
Shuyan Yu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Single Electron ◽  
Radical Reactions ◽  
Single Electron Transfer

scholarly journals Aryl radical-mediated N-heterocyclic carbene catalysis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yuki Matsuki ◽  
Nagisa Ohnishi ◽  
Yuki Kakeno ◽  
Shunsuke Takemoto ◽  
Takuya Ishii ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Single Electron ◽  
Radical Reactions ◽  
Single Electron Transfer ◽  
Aryl Radical ◽  
Aryl Iodide ◽  
Alkyl Radicals ◽  
Aryl Radicals ◽  
Electron Transfer Processes ◽  
Secondary Amides

AbstractThere have been significant advancements in radical reactions using organocatalysts in modern organic synthesis. Recently, NHC-catalyzed radical reactions initiated by single electron transfer processes have been actively studied. However, the reported examples have been limited to catalysis mediated by alkyl radicals. In this article, the NHC organocatalysis mediated by aryl radicals has been achieved. The enolate form of the Breslow intermediate derived from an aldehyde and thiazolium-type NHC in the presence of a base undergoes single electron transfer to an aryl iodide, providing an aryl radical. The catalytically generated aryl radical could be exploited as an arylating reagent for radical relay-type arylacylation of styrenes and as a hydrogen atom abstraction reagent for α-amino C(sp3)–H acylation of secondary amides.

scholarly journals Radical reactions promoted by trivalent tertiary phosphines

2020 ◽  
Vol 7 (16) ◽  
pp. 2349-2371 ◽  
Author(s):  
Dingwu Pan ◽  
Guihua Nie ◽  
Shichun Jiang ◽  
Tingting Li ◽  
Zhichao Jin
Keyword(s):  
Electron Transfer ◽  
Single Electron ◽  
Radical Reactions ◽  
Single Electron Transfer ◽  
Tertiary Phosphines

The background and recent breakthroughs in the single-electron-transfer (SET) reactions with trivalent tertiary phosphines are summarized and discussed in detail, and an outlook in the developments within this field is provided.

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