CH3 CH2 Cl NaCN⟶(A) Ni / H2⟶ (B) Acetic anhydride ⟶(C) (C) in the above reaction is: (a) CH3 CH2

step 1 In this problem I can write the reaction as CH3, CH2 CL it is in presence of N -A -C -N will giv

CH3 CH2 Cl NaCN⟶(A) Ni / H2⟶ (B) Acetic anhydride ⟶(C) (C)...

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Cl} \stackrel{\mathrm{NaCN}}{\longrightarrow}(\mathrm{A}) \stackrel{\mathrm{Ni} / \mathrm{H}_{2}}{\longrightarrow}$ (B) Acetic anhydride ${\longrightarrow}(\mathrm{C})$ (C) in the above reaction is: (a) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NHCOCH}_{3}$ (b) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}$ (c) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CONHCOCH}_{3}$ (d) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CONHCH}_{3}$

$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{Cl} \stackrel{\mathrm{NaCN}}{\longrightarrow}(\mathrm{A}) \stackrel{\mathrm{Ni} / \mathrm{H}_{2}}{\longrightarrow}$ (B) Acetic anhydride ${\longrightarrow}(\mathrm{C})$
(C) in the above reaction is:
(a) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NHCOCH}_{3}$
(b) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NH}_{2}$
(c) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CONHCOCH}_{3}$
(d) $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CONHCH}_{3}$

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Key Concepts

Acylation of Amines to Form Amides

Acylation involves the reaction of an amine with an acylating agent like acetic anhydride to yield an amide. This transformation is important for protecting amine groups or modifying their chemical behavior by converting them into more stable amide functionalities.

Catalytic Hydrogenation of Nitriles

Catalytic hydrogenation uses a metal catalyst (such as nickel) and hydrogen gas to reduce unsaturated functionalities. In the case of nitriles, hydrogenation transforms the –C?N group into a primary amine, a reaction that is valuable for forming nitrogen-containing compounds.

Nitrile Formation through Nucleophilic Substitution

When a cyanide ion reacts with an alkyl halide under SN2 conditions, it substitutes the halide to form a nitrile. Nitriles serve as versatile intermediates in organic chemistry, being precursors to other functional groups like amines.

SN2 Reaction Mechanism

This reaction involves the backside attack of a nucleophile on an alkyl halide, leading to the displacement of the leaving group in a single concerted step. It is commonly observed with primary alkyl halides and is a fundamental transformation in organic synthesis.

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