alleryIn Friedel-Crafts acylation, RCOCl + AlCl₃ + benzene gives:
APhenol
BRandom
CPh-CO-R (aryl ketone; AlCl₃ generates acylium R-CO⁺)
DRCH₂-Ph
Answer & Solution
Correct answer: C. Ph-CO-R (aryl ketone; AlCl₃ generates acylium R-CO⁺)
R-COCl + AlCl₃ → R-CO⁺ + AlCl₄⁻.
Acylium electrophile attacks aromatic ring (EAS). Gives aryl ketone.
Why Friedel-Crafts acylation preferred to alkylation (no rearrangement, no polysubstitution).
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