Which of the following methods of preparation of amines will not give same number of carbon atoms in the chain of amines as the the reactant ?

Options

A. Reaction of nitrite with `LiAlH_4`
B. Reaction of amide with `LiAlH_4` followed by treatment with water
C. Heating alkylhalide with potassium salt of phthalimide followed by hydrolysis
D. Treatment of amide with bromine in aqueous solution of sodium hydroxide.

Answer

D

Explanation

`underset("Amide")(RCONH_2) overset(Br_2 //NaOH)to underset("Amine with one C-atom less than the amide")(RNH_2)`
Only treatment of amide with `Br_2` in aqueous solution of NaOH wil give an amine with lesser number of carbon atoms than in the reactant.