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  4. In the carbylamine reaction, R-X is converted to R-Y via the intermediate Z, R-X,R-Y and Z, respectively are

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Q. In the carbylamine reaction, $R-X$ is converted to $R-Y$ via the intermediate Z, $R-X,R-Y$ and Z, respectively are

NTA AbhyasNTA Abhyas 2020Amines

Solution:

In carbylamine reaction, isocyanide (bad smelling compound) is obtained when primary amine (aliphatic as well as aromatic) reacts with chloroform in the presence of alkali. This reaction proceeds through dichlorocarbene intermediate which is obtained by the reaction of chloroform with alkene.

$CHCl_{3}+KOH \rightarrow KCl+H_{2}O+\underset{\text{Dichlorocarbene'Z'}}{: C C l_{2}}$

Solution

The $X=RNH_{2}$ and $Y=RNC$ .