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
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1ZgIs5zfF68_Z967QM0e-_NtVMBRGsfRz&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Step 2
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1z57_AV4orhj6S1eR9eMRDsX9O6CHynuH&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Step 3: Attack of the pie electrons of benzene
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1xY9LxeppeVQFP15ADEFxjiI6yzVDwVO7&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
step 4 – Abstracton of H by Cl –
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=17n7ae3YZATBykAFs6GxV0pb_0CCy8zc8&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
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.
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=12mpVyZVtNtTVWadw4SakeuBuIievGJFk&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Step 2
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1GRSlZFKZSHQG-AzH77LYKKDe5_W9VVbQ&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Q 2 ()
This reaction is called friedelcraft alkylation.
The mechanism is shown in our illustration
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=14kX4r54eMNM9Zpe2INKJ21oOk4_CCxk7&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
The primary carbocation is instabile so it can be rearranged to form secondary
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1fxBWP_gfDH7Rj_UkCU6VveHiCnwLfHIi&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Attack on benzene
![2. Draw the major product or products of the following electrophilic aromatic substitutionreactions. Assume each substitution...](https://drive.google.com/uc?id=1gF1-j8IQs5_smyp87reh3q2imXxtpwZu&export=download/2.-Draw-the-major-product-or-products-of-the-following-electrophilic-aromatic-substitutionreactions.-Assume-each-substitution.png?x-oss-process=image/resize,w_560/format,webp)
Conclusion
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