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Grade: 12
        The Kolbe–Schmitt reaction or Kolbe process (named after Hermann Kolbe and Rudolf Schmitt) 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 sulfuric acid. The final product is an aromatic hydroxy acid which is also known as salicylic acid (the precursor to aspirin).[1][2][3][4]Kolbe–Schmitt reactionNamed after	Hermann KolbeRudolf SchmittReaction type	Addition reactionIdentifiersOrganic Chemistry Portal	kolbe-schmitt-reactionRSC ontology ID	RXNO:0000182The Kolbe–Schmitt reactionBy using potassium hydroxide, 4-hydroxybenzoic acid is accessible, an important precursor for the versatile paraben class of biocides used e.g. in personal care products.The methodology is also used in the industrial synthesis of 3-hydroxy-2-naphthoic acid. The regiochemistry of the carboxylation in this case is sensitive to temperature.[5]
2 years ago

Answers : (1)

Ravleen Kaur
askIITians Faculty
1453 Points
							Hello Student,

The Kolbe Reaction and preperation of Aspirin reaction is attached in image. Kindly go through that.

All the Best
Regards
IHE Chemistry


560-342_Koles reaction.PNG
one year ago
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