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JEE Main 202324 JanuaryMorning Shift
Exam
JEE Main
Year
2023
Date
24 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2023 · 24 January · Morning Shift · Chemistry · Aldehydes and Ketones

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

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

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

Options

  1. AIdentify the reagent(s) ' A ' and condition(s) for the reaction :
  2. BIdentify the reagent(s) ' A ' and condition(s) for the reaction :
  3. CIdentify the reagent(s) ' A ' and condition(s) for the reaction :
  4. DIdentify the reagent(s) ' A ' and condition(s) for the reaction :

Correct answer

A. Identify the reagent(s) ' A ' and condition(s) for the reaction :

Step-by-step solution

The cross aldol reaction takes place between isobutyraldehyde and formaldehyde to get hydroxypivaldehyde. On reaction with hydrogen cyanide followed by hydrolysis produces the lactone product.

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

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