Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:### Electrophilic Aromatic Substitution (EAS) Reaction Analysis
**Question:**
Which position will an electrophile (E⁺) most likely add in an Electrophilic Aromatic Substitution (EAS) reaction?
**Diagram Explanation:**
The diagram depicts a chlorobenzene molecule with a chlorine atom (Cl) attached to the benzene ring. Four potential positions for electrophilic addition are labeled as A, B, C, and D around the benzene ring.
- **Position A**: Located ortho to the chlorine substituent.
- **Position B**: Located meta to the chlorine substituent.
- **Position C**: Located para to the chlorine substituent.
- **Position D**: Located meta to the chlorine substituent on the opposite side.
**Concept Explanation:**
In an EAS reaction, electron-withdrawing groups like chlorine typically direct electrophiles to the ortho and para positions (positions A and C). This is due to the resonance and inductive effects, where these positions can stabilize the carbocation intermediate more effectively than the meta positions (B and D).
**Answer:**
The electrophile (E⁺) will most likely add to the ortho (A) or para (C) position relative to the chlorine substituent due to these directing effects.
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