Question
Write a note on Friedel Craft’s reaction.
✓
Answer
(1) Methyl chloride in the presence of anhydrous $AICl _3$ : When chlorobenzene is treated with methyl chloride in the presence of anhydrous $AlCl _3$, a mixture of I-chloro-4-methyl benzene (major product) and I-chloro-2-methyl benzene is formed. Since, the alkyl group is introduced in the benzene ring, the reaction is termed as Friedel Craft's alkylation.
(2) Acetyl chloride in the presence of anhydrous $AlCl _3$ : When chlorobenzene is reacted with acetyl chloride in the presence of anhydrous $AlCl _3$, a mixture of 2-chloro acetophenone and 4-chloro acetophenone (major product) is formed. Since, the acetyl group is introduced in the benzene ring, the reaction is termed as Friedel Craft's acylation.
(2) Acetyl chloride in the presence of anhydrous $AlCl _3$ : When chlorobenzene is reacted with acetyl chloride in the presence of anhydrous $AlCl _3$, a mixture of 2-chloro acetophenone and 4-chloro acetophenone (major product) is formed. Since, the acetyl group is introduced in the benzene ring, the reaction is termed as Friedel Craft's acylation.
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