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JEE Main20231 Feb 2023Evening ShiftChemistryCarboxylic Acid DerivativesActual

In a reaction reagents ‘ X ’ and ‘ Y ’ respectively are:

Options

  1. ACH 3 CO 2 O / H + and CH 3 OH / H + ,   ∆
  2. BCH 3 CO 2 O / H + and CH 3 CO 2 O / H +
  3. CCH 3 OH / H + ,   ∆ and CH 3 OH / H + ,   ∆
  4. DCH 3 OH / H + ∆ and CH 3 CO 2 O / H +

Correct answer

A. CH 3 CO 2 O / H + and CH 3 OH / H + ,   ∆

Step-by-step solution

When salicylic acid is heated with methyl alcohol, the carboxyl group of salicylic acid is esterified producing a strong-smelling liquid ester (methyl salicylate). Aspirin is prepared by chemical synthesis from salicylic acid, through acetylation with acetic anhydride. Hence, reagent ' Y ' and ' X ' respectively are: CH 3 OH / H + ,   ∆ and CH 3 CO 2 O / H + .

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