Question

NaCN Ni/H₂
CH₃CH₂Cl ➝ X ➝ Y
Acetic
Y ➝ Z
anhydride
Z in the above reaction sequence is
(a) CH₃CH₂CH₂NHCOCH₃
(b) CH₃CH₂CH₂NH₂
(c) CH₃CH₂CH₂CONHCH₃
(d) CH₃CH₂CH₂CONHCOCH₃

Answer 1

Answer:

(a)CH3CH2NHCOCH3

Explanation:

(a)CH3CH2NHCOCH3

Answer 2

(a) CH₃CH₂CH₂NHCOCH₃

Explanation:

Ethyl chloride reacts with sodium cyanide to form propionitrile. Cl is displaced with -CN. Hydrogenation in presence of Ni reduces cyano group to amino group. Acetylation with acetic anhydride gives the final product Z in which the amino group is acetylated. Hence, Z in the given reaction sequence is CH₃CH₂CH₂NHCOCH₃.

Option A is the answer.