Same chapter3 marksDifficulty: Medium
Describe the Williamson synthesis of ethers and state its limitation.
Alcohols, Phenols and Ethers
3 marksDifficulty: Medium
What is the Reimer-Tiemann reaction, and what does it produce from phenol?
Original Khojo Papers practice question — not from a past board paper.
Answer
Phenol is treated with chloroform and aqueous sodium hydroxide, and the dichlorocarbene generated attacks the ring at the position next to the hydroxyl group. Acid hydrolysis of the intermediate gives salicylaldehyde, that is 2-hydroxybenzaldehyde.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
With carbon tetrachloride in place of chloroform the product is salicylic acid.
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