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When an aliphatic primary amine is warmed with chloroform in the presence of ethanolic potassium hydroxide, which organic product is obtained?

1. an alkanol
2. an alkanediol
3. an alkyl cyanide
4. an alkyl isocyanide

Correct answer: an alkyl isocyanide

Solution

A primary amine warmed with CHCl3 and ethanolic KOH undergoes the carbylamine (isocyanide) test, forming a foul-smelling alkyl isocyanide R-NC. Answer: option 3.

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