Spectral and Kinetic Properties of Radical Cations Derived from Oxoisoaporphines: Relevance to Electron-Transfer Processes Involving Phytoalexins

2014 ◽  
Vol 118 (21) ◽  
pp. 3775-3786 ◽  
Author(s):  
Julio R. De la Fuente ◽  
Gabriel Kciuk ◽  
Christian Aliaga ◽  
Krzysztof Bobrowski
Keyword(s):  
Electron Transfer ◽  
Radical Cations ◽  
Kinetic Properties ◽  
Transfer Processes ◽  
Electron Transfer Processes

scholarly journals Tropane and Related Alkaloid Skeletons via a Radical [3+3]-Annulation Process

2021 ◽  
Author(s):  
Eloïse Colson ◽  
Julie Andrez ◽  
Ali Dabbous ◽  
Frabrice Dénès ◽  
Vincent Maurel ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Radical Cations ◽  
Photoredox Catalysis ◽  
Radical Intermediates ◽  
Transfer Processes ◽  
Radical Acceptor ◽  
Simple Protocol ◽  
Related Alkaloid ◽  
Electron Transfer Processes

A mild and simple protocol for the synthesis of 8-azabicyclo[3.2.1]octane and 9-azabicyclo[3.3.1]nonane derivatives is described. It provides these valuable bicyclic alkaloid skeletons in good yields and high levels of diastereoselectivity from simple and readily available starting materials using visible-light photoredox catalysis. This unprecedented annulation process takes advantage of the unique reactivity of ethyl 2-(acetoxymethyl)acrylate as a 1,3-bis radical acceptor and of cyclic N,N-dialkylanilines as radical 1,3-bis radical donors. The success of this process relies on efficient electron transfer processes and highly selective deprotonation of aminium radical cations leading to the key α-amino radical intermediates.

scholarly journals Tropane and Related Alkaloid Skeletons via a Radical [3+3]-Annulation Process

2021 ◽  
Author(s):  
Eloïse Colson ◽  
Julie Andrez ◽  
Ali Dabbous ◽  
Frabrice Dénès ◽  
Vincent Maurel ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Radical Cations ◽  
Photoredox Catalysis ◽  
Radical Intermediates ◽  
Transfer Processes ◽  
Radical Acceptor ◽  
Simple Protocol ◽  
Related Alkaloid ◽  
Electron Transfer Processes

A mild and simple protocol for the synthesis of 8-azabicyclo[3.2.1]octane and 9-azabicyclo[3.3.1]nonane derivatives is described. It provides these valuable bicyclic alkaloid skeletons in good yields and high levels of diastereoselectivity from simple and readily available starting materials using visible-light photoredox catalysis. This unprecedented annulation process takes advantage of the unique reactivity of ethyl 2-(acetoxymethyl)acrylate as a 1,3-bis radical acceptor and of cyclic N,N-dialkylanilines as radical 1,3-bis radical donors. The success of this process relies on efficient electron transfer processes and highly selective deprotonation of aminium radical cations leading to the key α-amino radical intermediates.

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

Photoinduced electron transfer in mechanically interlocked suit[3]ane systems

2021 ◽  
Author(s):  
Anton J Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
New Class ◽  
Transfer Processes ◽  
Two Component ◽  
Electron Transfer Processes

Suitanes, a new class of two-component mechanically interlocked systems, have recently been developed. In this work, we report a detailed study of photoinduced electron transfer processes in the suit[3]anes consisting...

scholarly journals Regulation of electron transfer processes affects phototrophic mat structure and activity

2015 ◽  
Vol 6 ◽  
Author(s):  
Phuc T. Ha ◽  
Ryan S. Renslow ◽  
Erhan Atci ◽  
Patrick N. Reardon ◽  
Stephen R. Lindemann ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Transfer Processes ◽  
Electron Transfer Processes ◽  
Structure And Activity
Sign in / Sign up

Export Citation Format

Share Document