JEE Advanced2023ChemistryCarboxylic Acid DerivativesActual
In the following reactions, P , Q , R , and S are the major products. The correct statement(s) about P , Q , R , and S is(are)
Options
- AP and Q are monomers of polymers dacron and glyptal, respectively.
- BP, Q, and R are dicarboxylic acids.
- CCompounds Q and R are the same.
- DR does not undergo aldol condensation and S does not undergo Cannizzaro reaction.
Correct answer
C. Compounds Q and R are the same.
Step-by-step solution
Toluene part of the reactant in the first reaction undergoes oxidation with KMnO 4 , forms benzoic acid. In this conversion, alkyl part of toluene converts into carboxylic group. So, P is a monocarboxylic acid. Both ester and acid halides undergo hydrolysis to give carboxylic acid. Hence, the product Q is the dicarboxylic acid. And it is known as isophthalic acid. In the third reaction, ester undergo hydrolysis in the first step, which results beta keto acid. Beta keto acids are unstable. They liberate carbon dioxi