Explain the following with an example.

Kolbe’s reaction.


Kolbe’s Reaction: it is a carboxylation chemical reaction that proceeds by heating sodium phenoxide(the sodium salt of phenol)with carbon dioxide under pressure(100 atm,125°C), then treating the product with a sulphuric acid. The final product is salicylic acid (the precursor to aspirin).


The reaction is given as:



The mechanism is given below:



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