Question
Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if $CCl_4$ is used instead of $CHCl_3$ in the above reaction.
✓
Answer
- Phenol to salicyaldehyde: When phenol is treated with chloroform in an aqueous sodium hydroxide solution followed by hydrolysis with acid, salicylaldehyde is formed.
- This reaction is known as the Reimer-Tiemann reaction.
- If the solvent chloroform $(CHCl_3)$ is replaced by carbon tetrachloride $(CCl_4)$, salicylic acid is formed.
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