Mechanistic studies on DNA photolyase. 9. Is the cleavage of the cyclobutane pyrimidine photodimer radical anion a pericyclic reaction?

1993 ◽  
Vol 115 (22) ◽  
pp. 10370-10371 ◽  
Author(s):  
R. Austin ◽  
S. McMordie ◽  
Eva Altmann ◽  
Tadhg P. Begley
Keyword(s):  
Radical Anion ◽  
Mechanistic Studies ◽  
Dna Photolyase ◽  
Pericyclic Reaction

A QM/MM Investigation of Thymine Dimer Radical Anion Splitting Catalyzed by DNA Photolyase

ChemPhysChem ◽  
2009 ◽  
Vol 10 (2) ◽  
pp. 400-410 ◽  
Author(s):  
Fanny Masson ◽  
Teodoro Laino ◽  
Ursula Rothlisberger ◽  
Jürg Hutter
Keyword(s):  
Radical Anion ◽  
Dna Photolyase ◽  
Thymine Dimer

scholarly journals A combined experimental and theoretical study on the reactivity of nitrenes and nitrene radical anions

2022 ◽  
Vol 13 (1) ◽  
Author(s):  
Yujing Guo ◽  
Chao Pei ◽  
Rene M. Koenigs
Keyword(s):  
Radical Anion ◽  
Room Temperature ◽  
Theoretical Study ◽  
Transition Metal Catalysts ◽  
Transfer Reactions ◽  
Mechanistic Studies ◽  
Reaction Conditions ◽  
Nitrene Transfer ◽  
Triplet Nitrene ◽  
Nitrogen Bonds

AbstractNitrene transfer reactions represent one of the key reactions to rapidly construct new carbon-nitrogen bonds and typically require transition metal catalysts to control the reactivity of the pivotal nitrene intermediate. Herein, we report on the application of iminoiodinanes in amination reactions under visible light photochemical conditions. While a triplet nitrene can be accessed under catalyst-free conditions, the use of a suitable photosensitizer allows the access of a nitrene radical anion. Computational and mechanistic studies rationalize the access and reactivity of triplet nitrene and nitrene radical anion and allow the direct comparison of both amination reagents. We conclude with applications of both reagents in organic synthesis and showcase their reactivity in the reaction with olefins, which underline their markedly distinct reactivity. Both reagents can be accessed under mild reaction conditions at room temperature without the necessity to exclude moisture or air, which renders these metal-free, photochemical amination reactions highly practical.

Mechanistic studies on the electrochemical reductive coupling of some polyhalogenonitrobenzenes. A new example of a radical anion dimerization

Tetrahedron ◽  
1994 ◽  
Vol 50 (23) ◽  
pp. 6913-6920 ◽  
Author(s):  
Claude P Andrieux ◽  
Anna Batlle ◽  
Martirio Espín ◽  
Iluminada Gallardo ◽  
Ziqi Jiang ◽  
...  
Keyword(s):  
Radical Anion ◽  
Reductive Coupling ◽  
Mechanistic Studies
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