Organic Chemistry

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18. Reactions of Aromatics:EAS and Beyond

Electrophilic Aromatic Substitution

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We are about to learn the most important mechanism that benzene can undergo. It is called EAS or Electrophilic Aromatic Substitution

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concept

EAS Review

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Summary:

  • Benzene reacts with very few reagents through typical addition. Why? Because the product would be non-aromatic  

 

  • BUT, if we can get benzene to react in a substitution reaction, this preserves aromaticity
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EAS General Mechanism

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EAS General Mechanism:

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