Question

Which one of the following shows the carbylamine reaction in the presence of heat?

Options

• \[\ce{R-NH2 + CHCl3 + 3KOH -> R-NC + 3KCl + 3H2O}\]

• \[\ce{R-NH2 + C6H5COCl -> R-NHCOC6H5 + HCl}\]

• \[\ce{CH3CH2CH2I + NaCl -> CH3CH2CH2-Cl + Nal}\]

• \[\ce{CH3=CH2 + H-I -> CH3CH2CH2I + CH3CHICH3}\]

Answer 1

\[\ce{R-NH2 + CHCl3 + 3KOH -> R-NC + 3KCl + 3H2O}\]

Explanation:

In carbylamines reaction, primary amine reacts with chloroform and base to form isocyanide having a foul smell.