scholarly journals Anti-oxidant activity of 6-gingerol as a hydroxyl radical scavenger by hydrogen atom transfer, radical addition and electron transfer mechanisms

2016 ◽  
Vol 128 (8) ◽  
pp. 1199-1210 ◽  
Author(s):  
MANISH K TIWARI ◽  
P C MISHRA
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydroxyl Radical ◽  
Radical Addition ◽  
Hydrogen Atom Transfer ◽  
Radical Scavenger ◽  
Atom Transfer Radical Addition ◽  
Hydroxyl Radical Scavenger ◽  
Anti Oxidant ◽  
Transfer Mechanisms

Atmospheric formation of the NO3 radical from gas-phase reaction of HNO3 acid with the NH2 radical: proton-coupled electron-transfer versus hydrogen atom transfer mechanisms

2014 ◽  
Vol 16 (36) ◽  
pp. 19437-19445 ◽  
Author(s):  
Josep M. Anglada ◽  
Santiago Olivella ◽  
Albert Solé
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer ◽  
Phase Reaction ◽  
Electron Transfer Mechanism ◽  
Proton Coupled Electron Transfer ◽  
No3 Radical ◽  
Transfer Mechanisms ◽  
Atmospheric Formation

The amidogen radical abstracts the hydrogen from nitric acid through a proton coupled electron transfer mechanism rather than by an hydrogen atom transfer process.

Hydrocarbon Oxidation by Bis-μ-oxo Manganese Dimers:  Electron Transfer, Hydride Transfer, and Hydrogen Atom Transfer Mechanisms

2002 ◽  
Vol 124 (34) ◽  
pp. 10112-10123 ◽  
Author(s):  
Anna S. Larsen ◽  
Kun Wang ◽  
Mark A. Lockwood ◽  
Gordon L. Rice ◽  
Tae-Jin Won ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydride Transfer ◽  
Hydrogen Atom Transfer ◽  
Hydrocarbon Oxidation ◽  
Atom Transfer ◽  
Transfer Mechanisms

scholarly journals Reactivity of hydropersulfides toward the hydroxyl radical unraveled: disulfide bond cleavage, hydrogen atom transfer, and proton-coupled electron transfer

2018 ◽  
Vol 20 (7) ◽  
pp. 4793-4804 ◽  
Author(s):  
Josep M. Anglada ◽  
Ramon Crehuet ◽  
Sarju Adhikari ◽  
Joseph S. Francisco ◽  
Yu Xia
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Hydroxyl Radical ◽  
Disulfide Bond ◽  
Bond Cleavage ◽  
Hydrogen Abstraction ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer ◽  
Oh Radical ◽  
Proton Coupled Electron Transfer

Hydropersulfides (RSSH) are highly reactive towards OH radical, and depending on the nature of R substitute, a selective OH substitution with S–S bond cleavage competes with the hydrogen abstraction by the radical.

2-Aryl-1,3-dimethylbenzimidazolines as Effective Electron and Hydrogen Donors in Photoinduced Electron-Transfer Reactions

2015 ◽  
Vol 68 (11) ◽  
pp. 1640 ◽  
Author(s):  
Eietsu Hasegawa ◽  
Shin-ya Takizawa
Keyword(s):  
Electron Transfer ◽  
Hydrogen Atom ◽  
Photoinduced Electron Transfer ◽  
Hydrogen Atom Transfer ◽  
Transfer Reactions ◽  
Organic Substrates ◽  
Iridium Complexes ◽  
Effective Electron ◽  
Hydrogen Donors ◽  
Wavelength Light

2-Aryl-1,3-dimethylbenzimidazolines (DMBIHs) have been applied to photoinduced electron-transfer reductions of various organic substrates. Either direct or indirect electron transfer between the substrates and DMBIHs is utilized to promote the desired transformations. Photoexcitation of the substrates using light above 280 nm was carried out in the former protocol whereas a photosensitization method using materials such as substituted pyrenes, ruthenium and iridium complexes that absorb longer-wavelength light was employed in the latter. In these reactions, DMBIHs undergo initial electron transfer and subsequent proton or hydrogen atom transfer.

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