Question

In order to convert aniline to chloro benzene, the reagent(s) needed are

Answer 1

Sandmayer reaction:

• To Convert Aniline To Chloro Benzene, substitute the amino group from the ring with chlorine
• That is, whatever reagent is added during this reaction, should react with the amino-functional groups.

Step 1 Formation of diazonium salt

The Sodium nitrite$\left({\mathrm{NaNO}}_2\right)$ and Hydrochloric acid$\left(\mathrm{HCl}\right)$ react with Aniline to form diazonium salt.

Step 2 Formation of Chlorobenzene

If this diazonium salt is allowed to react with Cuprous chloride$\left(\mathrm{CuCl}\right)$, then it will replace the diazonium group on the aromatic ring and will give Chlorobenzene as a product.

• For this reaction Sodium nitrite$\left({\mathrm{NaNO}}_2\right)$, Hydrochloric acid$\left(\mathrm{HCl}\right)$, and Cuprous chloride$\left(\mathrm{CuCl}\right)$are used

Therefore, in order to convert Aniline to Chloro Benzene, the reagents needed are Sodium nitrite$\left({\mathrm{NaNO}}_2\right)$, Hydrochloric acid$\left(\mathrm{HCl}\right)$, and Cuprous chloride$\left(\mathrm{CuCl}\right)$.