Question

Propyl nitrite may be converted into butyl amine by using which of the following reducing agent?

• A. ${\mathrm{LiAlH}}_4$
• B. $\mathrm{Sn}$or $\mathrm{HCl}$
• C. Conc. $\mathrm{HCl}$
• D. None Of These

Answer 1

The correct option is A

${\mathrm{LiAlH}}_4$

Explanation for Correct answer:

Option (A) ${\mathrm{LiAlH}}_4$

• Propyl nitrite is converted into Butyl amine by using ${\mathrm{LiAlH}}_4$ as a reducing agent.

$\underset{\mathrm{Propyl}\mathrm{nitrile}}{{\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{C}\equiv \mathrm{N}}\stackrel{{\mathrm{LiAlH}}_4}{\to }\underset{\mathrm{Butyl}\mathrm{amine}}{{\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{NH}}_2}$

• Hence correct option

Explanation for incorrect answers:

Option (B) $\mathrm{Sn}$or $\mathrm{HCl}$

• The reducing agents $\mathrm{Sn}$or $\mathrm{HCl}$ reduce the aromatic nitro compound.
• Hence incorrect option

Option (C) Conc. $\mathrm{HCl}$

• Hydrochloric acid is a mild reducing agent.
• It converts many metals into chlorides.
• Hence incorrect option.

Option (D) None Of These

• Option (A) ${\mathrm{LiAlH}}_4$ is correct.
• Hence incorrect option

Therefore, the correct answer is option (A) ${\mathrm{LiAlH}}_4$