Question

The major product of the following reaction is:

• A.
• B.
• C.
• D.

Hint:

Nucleophilic aromatic substitution reactions favor positions that stabilize the intermediate through resonance or inductive effects

Answer 1

The Correct Option is C

The given reaction involves a nucleophilic substitution (S_N2) where sodium cyanide (NaCN) is used as the nucleophile and DMF is the solvent. In this reaction, the cyanide ion (CN⁻) will attack the electrophilic carbon attached to the halide group (Cl or I) and replace it.

The structure of the reactant is:

C₆H₄ClI

When NaCN is added, the cyanide ion (CN⁻) will substitute for the halide group, leading to the formation of a nitrile group (CN).

The major product of this reaction will be:

C₆H₄CN

Thus, the major product is the compound (C) Iodobenzene with one CN group attached to the benzene ring.