Question

Choose the correct option for the following reaction:

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The correct option is A

The explanation for the correct option:

(A)

1. By the action of excess $\mathrm{HBr}$, $1$-methoxy-$3$-vinyl benzene reacted to give $3$-($1$-bromoethyl)phenol.
2. The first step of the above reaction is ester hydrolysis by the action of $\mathrm{HBr}$.
3. The next step of the reaction is electrophilic addition of $\mathrm{HBr}$ to give the final product.
4. The above points can be explained below diagram:

The explanation for the incorrect option:

(B) The above-detailed explanation clearly explains that options (B), (C) and (D) are incorrect.

Hence, option (A) is incorrect.