Electrophilic substitution mechanism
What Electrophilic substitution mechanism means in Chemistry A-Level, as defined for OCR.
Definitions of Electrophilic substitution mechanism
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Reference: OCR
The electrophile attacks a carbon of the delocalised benzene ring, forming a positively charged intermediate with the charge delocalised around the ring, which then loses H⁺ to restore the aromatic ring.
The general pattern in which an electrophile attacks a ring carbon of the delocalised π-system, a positively charged intermediate forms, and a proton is lost to restore the aromatic ring.
Topics that use Electrophilic substitution mechanism
- Aromatic compounds (OCR A-Level)
Related terms
- Activating and 2,4-directing effect of the –OH group
- Bond lengths in benzene
- Carbon–carbon bond formation in synthesis
- Comparison with carboxylic acids and the carbonate test
- Delocalised π system and electron density
- Delocalised π system in benzene
- Directing effects
- Directing effects of OH, NH₂ and NO₂
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