Dynamic solvent effects in radical–radical coupling reactions: an almost bottleable localised singlet diradical

2020 ◽  
Vol 22 (48) ◽  
pp. 27949-27954 ◽  
Author(s):  
Rikuo Akisaka ◽  
Yasushi Ohga ◽  
Manabu Abe
Keyword(s):  
High Pressure ◽  
Solvent Effect ◽  
Solvent Effects ◽  
Coupling Reactions ◽  
Radical Coupling ◽  
Dynamic Solvent Effect

The lifetime of a localised singlet diradical with bulky substituents was extended using the dynamic solvent effect and reached an almost bottleable timescale of ∼2 s under extremely viscous conditions induced by high pressure.

scholarly journals Impact of the macrocyclic structure and dynamic solvent effect on the reactivity of a localised singlet diradicaloid with π-single bonding character

2021 ◽  
Author(s):  
Zhe Wang ◽  
Rikuo Akisaka ◽  
Sohshi Yabumoto ◽  
Tatsuo Nakagawa ◽  
Sayaka Hatano ◽  
...  
Keyword(s):  
Solvent Effect ◽  
Coupling Reaction ◽  
Dynamic Effects ◽  
Radical Coupling ◽  
Dynamic Solvent Effect ◽  
Radical Coupling Reaction ◽  
Macrocyclic Structure

An extremely long-lived localised singlet diradical with π-single bonding character is found in a macrocyclic structure that retards the radical–radical coupling reaction by the “stretch and solvent-dynamic effects”.

Kinetic Solvent Effects in Organic Reactions

2017 ◽  
Author(s):  
Belinda Slakman ◽  
Richard West
Keyword(s):  
Solvent Effect ◽  
Reaction Kinetics ◽  
Computational Methods ◽  
High Throughput ◽  
Kinetic Modeling ◽  
Solvent Effects ◽  
Reaction Rates ◽  
Prior Work ◽  
Solvent Phase ◽  
High Throughput Manner

<div> <div> <div> <p>This article reviews prior work studying reaction kinetics in solution, with the goal of using this information to improve detailed kinetic modeling in the solvent phase. Both experimental and computational methods for calculating reaction rates in liquids are reviewed. Previous studies, which used such methods to determine solvent effects, are then analyzed based on reaction family. Many of these studies correlate kinetic solvent effect with one or more solvent parameters or properties of reacting species, but it is not always possible, and investigations are usually done on too few reactions and solvents to truly generalize. From these studies, we present suggestions on how best to use data to generalize solvent effects for many different reaction types in a high throughput manner. </p> </div> </div> </div>

Room-Temperature, Water-Promoted, Radical-Coupling Reactions of Phenols with tert-Butyl Nitrite

Synlett ◽  
2017 ◽  
Vol 28 (16) ◽  
pp. 2153-2156 ◽  
Author(s):  
Wen-Ting Wei ◽  
Hongze Liang ◽  
Wen-Ming Zhu ◽  
Weida Liang ◽  
Yi Wu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Coupling Reactions ◽  
Phenol Derivative ◽  
Tert Butyl ◽  
Radical Coupling ◽  
Air Atmosphere ◽  
Cross Coupling Reaction ◽  
Temperature Water

A radical–radical cross-coupling reaction of phenols with tert-butyl nitrite has been developed with the use of water as an additive. This method allows the construction of C–N bonds under an air atmosphere at room temperature, providing the ortho-nitrated phenol derivative in moderate to good yields.

Via Radical Coupling Reactions

2003 ◽  
pp. 1
Author(s):  
E. P. Kündig ◽  
S. H. Pache
Keyword(s):  
Coupling Reactions ◽  
Radical Coupling

scholarly journals Radical coupling reactions of piceatannol and monolignols: A density functional theory study

2019 ◽  
Vol 164 ◽  
pp. 12-23 ◽  
Author(s):  
Thomas Elder ◽  
José Carlos del Río ◽  
John Ralph ◽  
Jorge Rencoret ◽  
Hoon Kim ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Coupling Reactions ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Radical Coupling
Sign in / Sign up

Export Citation Format

Share Document