Write short notes on the following:
Carbylamine reaction

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Solution

Carbylamine reaction
(i) Carbylamine reaction
When aliphatic/ aromatic primary amines are heated with chloroform and alc KOH, foul-smelling alkyl isocyanides or carbylamines are obtained. Secondary or tertiary amines do not give this test.
$P h - N H_{2} + C H C l_{3} + 3 K O H Δ - \to P h - N C + 3 K C l + 3 H_{2} O$
$2^{\circ}$ and $3^{\circ}$ (aromatic/aliphatic) do not give this reaction.

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