Addition of Electron-Rich Aromatics to Azafullerenium Carbocation. A Stepwise Electrophilic Substitution Mechanism

2003 ◽  
Vol 5 (24) ◽  
pp. 4603-4606 ◽  
Author(s):  
Georgios C. Vougioukalakis ◽  
Nikos Chronakis ◽  
Michael Orfanopoulos
Keyword(s):  
Electrophilic Substitution ◽  
Substitution Mechanism

Mechanistic Analysis of Iridium Heteroatom C−H Activation:  Evidence for an Internal Electrophilic Substitution Mechanism

2007 ◽  
Vol 26 (7) ◽  
pp. 1565-1567 ◽  
Author(s):  
Jonas Oxgaard ◽  
William J. Tenn ◽  
Robert J. Nielsen ◽  
Roy A. Periana ◽  
William A. Goddard
Keyword(s):  
Electrophilic Substitution ◽  
Mechanistic Analysis ◽  
Substitution Mechanism

Theoretical modelling of the electrophilic substitution mechanism in furan

1992 ◽  
Vol 253 ◽  
pp. 243-259 ◽  
Author(s):  
J.Raul Alvarez-Idaboy ◽  
Luis A. Montero
Keyword(s):  
Electrophilic Substitution ◽  
Theoretical Modelling ◽  
Substitution Mechanism

scholarly journals Effects of Bentonite on p-Methoxybenzyl Acetate: A Theoretical Model for Oligomerization via an Electrophilic-Substitution Mechanism

Molecules ◽  
2011 ◽  
Vol 16 (2) ◽  
pp. 1761-1775 ◽  
Author(s):  
Manuel Salmón ◽  
Rene Miranda ◽  
Ines Nicolás-Vázquez ◽  
Yolanda Marina Vargas-Rodriguez ◽  
Julian Cruz-Borbolla ◽  
...  
Keyword(s):  
Theoretical Model ◽  
Electrophilic Substitution ◽  
Substitution Mechanism

Chloroperoxidase. IV. Evidence for an Ionic Electrophilic Substitution Mechanism

1967 ◽  
Vol 89 (3) ◽  
pp. 719-720 ◽  
Author(s):  
Frederick S. Brown ◽  
Lowell P. Hager
Keyword(s):  
Electrophilic Substitution ◽  
Substitution Mechanism

The Chemistry of Triazine Isomers: Structures, Reactions, Synthesis and Applications

2020 ◽  
Vol 20 ◽  
Author(s):  
Neelottama Kushwaha ◽  
C S Sharma
Keyword(s):  
Basic Property ◽  
Electrophilic Substitution ◽  
Antimicrobial Agents ◽  
Resonance Energy ◽  
Heterocyclic Ring ◽  
Ring System ◽  
Agricultural Fields ◽  
Substitution Reactions ◽  
Anti Cancer ◽  
Benzene Structure

: Triazine is the six-membered heterocyclic ring containing three nitrogen which replaces carbon-hydrogen unit in the benzene ring. Based on nitrogen position present in the ring system, it is categorized in three isomeric forms i.e.1, 2, 3-triazine (vicinal triazine), 1, 2, 4-triazine (asymmetrical triazine or isotriazine) and 1, 3, 5-triazine (symmetrical or s-triazine or cyanidine). Triazines have weakly basic property. Its isomers have much weaker resonance energy than benzene structure, so nucleophilic substitution reactions are more preferred than electrophilic substitution reactions. Triazine isomers and their derivatives are known to play important roles possessing various activities in medicinal and agricultural fields such as anti-cancer, antiviral, fungicidal, insecticidal, bactericidal, herbicidal, antimalarial and antimicrobial agents.

Oxidation of polysubstituted pyridinium salts

1982 ◽  
Vol 47 (5) ◽  
pp. 1494-1502 ◽  
Author(s):  
Petr Nesvadba ◽  
Josef Kuthan
Keyword(s):  
Alkaline Medium ◽  
Electrophilic Substitution ◽  
Pyridine Ring ◽  
Potassium Ferricyanide ◽  
Pyridinium Salts ◽  
Complex Reaction

Oxidation of 1-substituted 2,4,6-triphenylpyridinium salts Ia-Ij with potassium ferricyanide in an alkaline medium was accompanied by contraction of the pyridine ring and formation of 1,2,3,5-tetrasubstituted pyrroles II. The derivative IIf underwent facile electrophilic substitution in the position 4. Contrary to compounds Ia-Ij, the 1-substituted-2,6-diphenylpyridinium salts IIIa,b were oxidized to give a complex reaction mixture containing 4-pyridones IVa,b.

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