Which of the following amines gives the characteristic offensive smell of isocyanide when heated with CHCl3 KOH ?

Question

Which of the following amines gives the characteristic offensive smell of isocyanide when heated with CHCl3 KOH ? (A) CH3NH2 (B) (CH3)2NH (C) (CH3)3N (D) (C6H5)2NH

Tardigrade Admin · Accepted Answer

Chloroform on warming with an alcoholic solution of primary amines and KOH gives carbylamine having offensive smell.

C H C l_{3} + RN H_{2} + 3 K O H warm isocyanide RN \equiv C C + 3 K Cl + 3 H_{2} O

Q. Which of the following amines gives the characteristic offensive smell of isocyanide when heated with $C H C l_{3}$ & $K O H$ ?

$C H_{3} N H_{2}$

$(C H_{3})_{2} N H$

$(C H_{3})_{3} N$

$(C_{6} H_{5})_{2} N H$

Chloroform on warming with an alcoholic solution of primary amines and KOH gives carbylamine having offensive smell.
$C H C l_{3} + RN H_{2} + 3 K O H warm isocyanide RN \equiv C C + 3 K Cl + 3 H_{2} O$

Q. Which of the following amines gives the characteristic offensive smell of isocyanide when heated with CHCl3​ & KOH ?

CH3​NH2​

(CH3​)2​NH

(CH3​)3​N

(C6​H5​)2​NH