KEY TAKEAWAYS •
The most commonly-recognized aromatic is the benzene ring.
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The key to aromaticity is resonance between the carbon atoms in a ring structure.
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It takes 2n + 2 electrons in the p-orbitals to create a resonant structure.
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The major reaction that takes place with aromatics is the electrophilic substitution involving many different substances attaching to the benzene ring.
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There are activating and deactivating side chains that will increase or decrease the chances of further substitution reactions taking place with the benzene ring.
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