Question

Do the convention

Benzene to m- Dichloro benzene​

Answer 1

STEP 1: NITRATION

C6H6 + NO2 ----> C6H5(NO2)

STEP 2: CHLORINATION

C6H5(NO2) + Cl ----> C6H4(NO2)(Cl)  [1-chloro-3-nitrobenzene]

You can reduce the nitro group to an amino group and then proceed with the Sandmeyer reaction.

C6H4(NO2)Cl ----Fe+HCl-----> C6H4(NH2)Cl

After sandmeyer's reaction: C6H4Cl2 (1,3-Dichlorobenzene)