Q. n-propylamine yields a volatile compound X on warming with alc. alkali and chloroform. X has an offensive odour. The structure of X is
A) $CH_{3}CH_{2}CH_{2}CN$
B) $\left( CH_{3} \right)_{2}CHCN$
C) $CH_{3}CH_{2}CH_{2}NC$
D) $\left( CH_{3} \right)_{2}CHNC$
Explanation
(c)
Primary amines react with alc alkali and chloroform to give an offensive odour compound i.e., isocyanide. This reaction is called carbylamine reaction.
$CH_{3}CH_{2}CH_{2}NH_{2} + CHCI_{3} + 3KOH \rightarrow CH_{3}CH_{2}CH_{2}NC + 3KCI + 3H_{2}O$
$n$-propyl amine (alco.) propyl isocyanide
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.