Which of the following methods of preparing of amines will give same number of carbon atoms in the chain of amines as in the reactant?

Options

A. Reaction of alkyl nitrile with `LiAlH_(4)`.
B. Reaction of amide with `LiAlH_(4)` followed by treatment with water.
C. heating alkyl halide with potassium salt of phthalimide followed by hydrolysis.
D. Treatment of amide with bromine in aqueous solution of sodium hydroxide.

Answer

D

Explanation

Only treatment of amide with `Br_(2)` in aqueous solution of NaOH will give an amie with lesser number of carbon atoms than in the reactant while
`RCONH_(2) overset(Br_(2)//NaOH)to RNH_(2)`
All the remaining reactions give an amine with the same number of carbon atoms as in the reactant.