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On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is :

Options

  1. AAn alkanol
  2. BAn alkanediol
  3. CAn alkyl cyanide
  4. DAn alkyl isocyanide

Correct answer

D. An alkyl isocyanide

Step-by-step solution

Reaction of aliphatic primary amine with chloroform and enhanolic potassium hydroxide leads to the formation of isocyanides/ carbylamines. This reaction is called carbylamine reaction. R - NH 2   → KOH(alc) CHCl 3  R - N ≡ C This is the confirmatory test for primary amines. A foul smelling isocyanide is formed. R ≠ − CH 3

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