The conversion of phenol to salicylic acid can be accomplished by
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The Reimer-Tiemann reaction is a useful method for introducing a formyl group (-CHO) to the aromatic ring, which can then be oxidized to a carboxyl group.
The Reimer-Tiemann reaction converts phenol to salicylic acid. This process involves phenol undergoing electrophilic substitution when treated with chloroform and a base, typically sodium hydroxide.