Question

For nitration of aniline, which of the following steps is followed?

• A. Direct nitration using nitrating mixture (conc. $\mathrm { HNO } _ { 3 } +$ cone. followed by oxidation.
• B. Using fuming $\mathrm { HNO } _ { 3 }$carrying out reaction at 273 K followed by hydrolysis.
• C. Using $\mathrm { NaNO } _ { 2 }$and HCl followed by reaction with conc. $\mathrm { HNO } _ { 3 }$ followed by hydrolysis.
• D. Acetylation followed by nitration and hydrolysis.

Answer 1

Answer: (D)

Acetylation followed by nitration and hydrolysis.

Answer 2

: $- \mathrm { NH } _ { 2 }$group is blocked by acetylation and then nitration is carried out.