2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution…
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Question “2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution…”
Answer
Friedel craft acyalation is the reaction.
Let’s see the mechanism. :
Step1: AlCl3 (lewis acid) is used to abstract electron pairs from Cl
Step 2
Step 3: Attack of the pie electrons of benzene
step 4 – Abstracton of H by Cl –
Now, product is formed by reacting Cl2 with FeCl3
The CH3CO group is orthopara directing, and to avoid steric hinderance Cl moves to para positionion.
Let’s show you the mechanism.
Step 2
Q 2 ()
This reaction is called friedelcraft alkylation.
The mechanism is shown in our illustration
The primary carbocation is instabile so it can be rearranged to form secondary
Attack on benzene
Conclusion
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