Phenol on treatment with C O 2 in the presence of NaOH followed by acidification produces compound X as the…

Phenol on treatment with CO2 in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with CH3CO2O in the presence of catalytic amount of H2SO4 produces:

Solution

Two different reactions are taking place here Kolbe–Schmitt reaction and esterification reaction (treatment of the product of Kolbe–Schmitt reaction with (CH3CO)2O (ester). 

The two reactions can be written as follows:

1.Kolbe–Schmitt reaction: reaction of phenol with carbon dioxide in the presence of sodium hydroxide, followed by acidification converts phenol to 1−1− hydroxybenzoic acid (Salicylic acid).

 

2.Esterification reaction: The salicylic acid is then reacted with acetic anhydride (CH3CO)2O) to form aspirin.

 

solution

Asked in: JEE Main 2018 (08 Apr)

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