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How will you bring about the following conversion?
Phenol to salicylaldehyde
Answer
Answer
Official answer keyEquation: $\mathrm{C_{6}H_{5}OH} + \mathrm{CHCl_{3}} + 3\mathrm{KOH} \xrightarrow{\text{alc.}\text{ }\text{KOH}\text{,}\text{ }\text{heat}} \mathrm{C_{6}H_{4}(OH)CHO} + 3\mathrm{KCl} + 2\mathrm{H_{2}O}$
Reimer-Tiemann reaction: phenol is heated with chloroform and alkali.
From ISC 2026 Specimen Chemistry Paper 1, question 6(i).