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Salicylic acid is prepared from phenol b...

Salicylic acid is prepared from phenol by

A

Reimer - Tiemann reaction

B

Kolbe's reaction

C

Kolbe - electrolytic reaction

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
The industrial preparation of salicylic acid is carried out by Kolbe-Schmitt reacion : sodium phenoxide and carbon dioxide are heated at `120-140^(@)C` under a pressure of several atmoshpheres.

A small amount of the `p-`product is also formed at the same time and if the temperature rises above `140^(@)C`, the `p-`isomer is the main product.
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