Electrophilic Aromatic Substitution Reactions Of
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Organic Reactions andOrganic Reactions and Their ...
polymer.zju.edu.cnIn a substitution reaction, a functional group in a particular chemical compound is replaced by another group. Reagent Substrate Reactive intermediate Type of organic substitution Nucleophilic Aliphatic Carbocation Aliphatic nucleophilic substitution Electrophilic Aromatic Carbanion Aromatic electrophilic substitution Free radical substitution
Chapter 15: Benzene and Aromaticity
as.vanderbilt.eduBenzene undergoes electrophilic substitution reactions (chapter 16) rather than electrophilic addition +BrBr Br Br Br +HBr Fe catalyst electrophilic addition electrophilic substitution Stability of Benzene: Heats of Hydrogenations + H 2 + 2 H 2 + 3 H 2 + 118 KJ/mol ... Aromatic ring C–H stretching at 3030 cm−1 and peaks from 1450 to 1600 cm−1
Professor J. Stephen Clark
www.chem.gla.ac.ukPyridines – Electrophilic Reactions N αααα ββββ γγγγ N E N E E N E E E E −E Pathways for the Electrophilic Aromatic Substitution of Pyridines • The position of the equilibrium between the pyridine and pyridinium salt depends on the substitution pattern and nature of the substituents, but usually favours the salt
Reactions of Benzene & Its Derivatives
colapret.cm.utexas.eduElectrophilic Aromatic Substitution • Electrophilic aromatic substitution: a Electrophilic aromatic substitution: reaction in which a hydrogen atom of an aromatic ring is replaced by an electrophile • In this section: – several common types of electrophiles – how each is generated – the mechanism by which each replaces hydrogen + + H ...
Reactions of Aromatic Compounds - Rutgers University
crab.rutgers.eduCh17 Reactions of Aromatic Compounds (landscape).docx Page3 Bromination of Benzene Bromination follows the same general mechanism for the electrophilic aromatic substitution …
Aromatic Compounds
www.crab.rutgers.eduCh16 Aromatic Compounds (landscape).docx Page 4 Unusual Behavior of Benzene Benzene has much more stability than predicted by the simple resonance delocalized structure. For …
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