question_answer

What kind of amines can be tested by reaction with chloroform under basic conditions?

A)  Primary aliphatic amines

B)  Primary aromatic amines

C)  Both primary aliphatic and aromatic amines

D)  All kind of available amines

Correct Answer: C

Solution :

                Primary amines (both aliphatic and aromatic) react with chloroform under basic condition to give isocyanide. This reaction is called carbylamine reaction. \[\underset{{{1}^{o}}amine}{\mathop{RN{{H}_{2}}}}\,+CHC{{l}_{3}}+3KOH\xrightarrow{{}}\underset{alkyl\text{ }isocyanide}{\mathop{RNC}}\,\] \[+3KCl+3{{H}_{2}}O\]