Import Question JSON

$\text{Hint: First acyl group is introduced and convert into ethyl group}$ $\text{Step 1:}$ $\text{The desired transformation is as follows:}$ $\text{benzene} \rightarrow \text{4-Bromo-2-nitro-1-ethyl benzene}$ $\text{Step 2:}$ $\text{The desired transformation occurs in four steps. In the first step, Friedel-Crafts acylation reaction occurs. In this reaction,}$ $\text{the acyl group is attached to the benzene ring. In the second step, Clemmensen reduction takes place and reduction of C=O}$ $\text{group takes place. In the third step, bromination occurs at the para position because the alkyl group is ortho/para directing.}$ $\text{In the fourth step, nitration occurs at the ortho position with respect to the alkyl group.}$ $\text{The overall reactions are as follows:}$ $\text{benzene} \xrightarrow{\text{CH}_3\text{COCl}/\text{AlCl}_3} \text{acylated benzene} \xrightarrow{\text{Zn}-\text{Hg}/\text{HCl}} \text{ethyl benzene} \xrightarrow{\text{Br}_2/\text{AlBr}_3} \text{bromoethyl benzene} \xrightarrow{\text{HNO}_3/\text{H}_2\text{SO}_4} \text{4-Bromo-2-nitro-1-ethyl benzene}$