What is the major product of Carbylamine reaction?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Isocyanide
The major product of the Carbylamine reaction is an isocyanide.
The Carbylamine reaction (also known as the isocyanide test) is a chemical reaction used to synthesize isocyanides (also called carbylamines). This reaction involves the treatment of a primary amine (RNH₂), chloroform (CHCl₃), and a strong base (like KOH or NaOH) under heating conditions.
The general reaction is:
\(RNH_2 + CHCl_3 + 3KOH \longrightarrow RNC + 3KCl + 3H_2O\)
\( RNH_2 \) is a primary amine.
\( CHCl_3 \) is chloroform.
\( RNC \) is the isocyanide, the major product.
KCl and water are by-products.
Isocyanides are characterized by their strong and unpleasant odor, and their formation is a positive indication of the presence of a primary amine.
Example:
Let us consider the example of methanamine to explain the reaction:
Mechanism:
Summary:
The major product of the Carbylamine reaction is isocyanide, making isocyanide the correct answe