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5) Friedel-Crafts Acylation
FC acylation places an acyl group on a benzene ring.
R H3C
O e.g. O O
acyl group acetyl group benzoyl group
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5) Friedel-Crafts Acylation
Mechanism:
The electrophile in Friedel-Crafts acylation is an acylium ion which is stabilized by
resonance.
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