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Compound $( X )$ undergoes following sequence of reactions to give the Lactone $( Y )$
Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

Updated On: Mar 30, 2026

  • Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

  • Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

  • Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

  • Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

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The Correct Option is C

Solution and Explanation

To solve this problem, we need to understand the chemical reactions given and identify how the compound (X) is transformed into the lactone (Y) via these reactions.

The reactions are as follows:

  1. \(\text{Compound (X) reacts with formaldehyde (HCHO) and KOH.}\) This is an example of the Cannizzaro reaction where an aldehyde in the presence of a strong base disproportionates into alcohol and acid. However, this is a condensation type leading to further reactions.
  2. \(\text{Reaction with KCN (in alcohol)}.\) This step typically introduces a cyano (-CN) group to the molecule.
  3. \(\text{Finally, acid hydrolysis (H}_3\text{O}^+)\) converts the cyano group into a carboxylic acid group.

 

Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

The correct answer is (C) :
Compound ( X ) undergoes following sequence of reactions to give the Lactone ( Y ).

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