The reaction of a primary amine with chloroform and ethanolic solution of $\mathrm{KOH}$ is called

The reaction of a primary amine with chloroform and ethanolic solution of $\mathrm{KOH}$ is called
  1. Hofmann's reaction
  2. coupling reaction
  3. carbylamine reaction
  4. Curtius reaction.

Solution

In carbylamine reaction, aliphatic and aromatic primary amines on heating with chloroform and ethanolic $\mathrm{KOH}$, form isocyanides or carbylamines which are foul smelling substances. $\begin{aligned} & R-\mathrm{NH}_2+\mathrm{CHCl}_3+3 \mathrm{KOH}_{(\text {alc. })} \stackrel{\Delta}{\longrightarrow} \\ & R-\mathrm{NC}+3 \mathrm{KCl}+3 \mathrm{H}_2 \mathrm{O} \\ & \end{aligned}$

Asked in: NEET 2012 (Screening)

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