How do you get salicylic acid from phenol ?

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Software Engineer

Treating sodium phenolate (the sodium salt of phenol) with carbon dioxide at high pressure (100 atm) and high temperature (390K) - a method known as the Kolbe-Schmitt reaction and then acidification of the product with sulfuric acid gives salicylic acid.
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Professional Chemistry Teacher for IIT JEE/NEET UG,Online expert for IB/IGCSE/AP CURRICULUM

Apply reimer tiemann reaction(phenol+PYRENE+KOH------------>salicylic acid)
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Refer Riemer Tiemman Reaction-
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By carboxylation of phenol called Kolbe's carboxylation.....Phenol reacts with Carbon Di- Oxide in Presence of NaOH and heat pressure to get Salicylic acid.
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Chemistry Tutor for CBSE higher secondary

By kolbes reaction (phenol first reacts with sodium hydroxide to form sodium phenoxideion which then undergoes electrophilic substitution reaction with carbon dioxide to form salicylic acid (o- hydroxybenzoic acid)
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JU-IITKGP & 10+ years experienced for boards, JEE,NEET,OLYMPIAD & 5-12

kolbes reaction (phenol first reacts with sodium hydroxide to form sodium phenoxideion which then undergoes electrophilic substitution reaction with carbon dioxide to form salicylic acid (o- hydroxybenzoic acid)
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I am Pharmaceutical Biotechnologist (MPHARM) passionate about teaching. Conscientious in nature that is competent and self disciplined.

By hydrolysis of acetyl salicylic acid
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Tutor

2 hydroxy benzenoic acid
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Teacher

Phenol is on treatment with NaOH or KOH, CCl4 and at last on hydrolysis gives salicylic acid. C6H5OH + CCl4 + NaOH = C6H4(OH)COOH salicylic acid + NaCl + H2O
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Chemistry lecturer with 17 years experience in teaching

Sodium salicylate is commercially prepared by treating phenol with carbon dioxide at high pressure (100 atm) and high temperature (390K) -a method known as the Kolbe-Schmitt reaction. Acidification of the product with sulfuric acid gives salicylic acid:
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