Transition-state barrier for electrophilic reactions. Solvation of charge-transfer ion pairs as the unifying factor in alkene addition and aromatic substitution with bromine

1982 ◽  
Vol 104 (26) ◽  
pp. 7599-7609 ◽  
Author(s):  
S. Fukuzumi ◽  
J. K. Kochi
Keyword(s):  
Charge Transfer ◽  
Transition State ◽  
Ion Pairs ◽  
Aromatic Substitution ◽  
Electrophilic Reactions ◽  
Transition State Barrier

Electron transference in hemolytic aromatic substitution reactions

1970 ◽  
Vol 48 (6) ◽  
pp. 1019-1020 ◽  
Author(s):  
Dennis D. Davis ◽  
Fauzia Y. Ahmed
Keyword(s):  
Charge Transfer ◽  
Complex Formation ◽  
Transition State ◽  
Substitution Reaction ◽  
Methyl Radicals ◽  
Aromatic Substitution ◽  
Substitution Reactions ◽  
A Charge ◽  
Homolytic Substitution

The selectivity of methyl radicals in the homolytic substitution reaction on naphthalene was studied as a function of solvent. The selectivity decreases as the solvent dielectric increases. A possible explanation of these effects based upon a charge-transfer contribution to the transition state leading to σ-complex formation is offered.

Structure dependent charge transfer in bipyrimidinium–octacyanotungstate ion pairs

Polyhedron ◽  
2016 ◽  
Vol 119 ◽  
pp. 1-6 ◽  
Author(s):  
Beata Nowicka ◽  
Wojciech Nitek ◽  
Piotr Pietrzyk ◽  
Barbara Sieklucka
Keyword(s):  
Charge Transfer ◽  
Ion Pairs

Enantioselective Nucleophilic Aromatic Substitution Reaction of Azlactones to Synthesize Quaternary α-Amino Acid Derivatives

Synlett ◽  
2020 ◽  
Author(s):  
Xiaohua Liu ◽  
Yi Li ◽  
Hao Pan ◽  
Wang-Yuren Li ◽  
Xiaoming Feng
Keyword(s):  
Hydrogen Bonding ◽  
Charge Transfer ◽  
Amino Acid ◽  
Substitution Reaction ◽  
Nucleophilic Aromatic Substitution ◽  
Amino Acid Derivatives ◽  
Amino Acid Esters ◽  
Aromatic Substitution ◽  
Charge Transfer Interaction ◽  
Acid Esters

AbstractAn asymmetric organocatalytic nucleophilic aromatic substitution reaction of azlactones with electron-deficient aryls was established. A variety of α-aryl α-alkyl α-amino acid esters and peptides were obtained in decent yields and stereoselectivities. A new bifunctional catalytic mode involving charge-transfer interaction and hydrogen bonding is proposed to explain the enantioselectivity.

A novel mechanism of spin-orientation dependence of O2 reactivity from first principles methods

2017 ◽  
Vol 7 (5) ◽  
pp. 1040-1044 ◽  
Author(s):  
M. C. S. Escaño ◽  
H. Kasai
Keyword(s):  
Density Functional Theory ◽  
Charge Transfer ◽  
Transition State ◽  
First Principles ◽  
Density Functional ◽  
Orientation Dependence ◽  
Coupling Mechanism ◽  
Spin Moment ◽  
Spin Orientation ◽  
Functional Theory

A novel mechanism of oxygen reaction on a metal surface beyond the present charge transfer or hybridization mechanism, spin-orientation dependence via a coupling mechanism due to the finite spin moment of O2 at the transition state, is obtained using a combination of spin density functional theory (SDFT) and constrained DFT.

ChemInform Abstract: FORMATION OF ION PAIRS IN IRRADIATED CHARGE-TRANSFER SYSTEMS

1975 ◽  
Vol 6 (23) ◽  
pp. no-no
Author(s):  
MASAHIRO IRIE ◽  
SETSUKO IRIE ◽  
YUKIO YAMAMOTO ◽  
KOICHIRO HAYASHI
Keyword(s):  
Charge Transfer ◽  
Ion Pairs
Sign in / Sign up

Export Citation Format

Share Document