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Chapter 12 :
Reactions of Arenes. Electrophilic Aromatic Substitution |
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Summary
The structure and properties of aromatic systems were discussed in Chapter
11. Now it is time to visit their chemical reactions.
The arene system contains an electron rich C=C system which
react with electrophiles via a substitution pathway (to preserve aromaticity)
via what is known as electrophilic aromatic substitution (EArS):
What does the term "electrophilic aromatic substitution"
actually imply ?
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An electrophile, E+, is an electron poor species
that will react with an electron rich species (the arene)
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Aromatic because the reaction is characteristic of aromatic systems.
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A substitution implies that a group is replaced (usually H).
Electrophilic aromatic substitution reactions are the very important
class of reactions that allow the introduction of substituents onto arenes.
Electrophilic Aromatic Substitution reactions
Problems
