1. Tardigrade
  2. Question
  3. Chemistry
  4. When phenol is reacted with CHCl3 and NaOH followed by acidification, salicyladehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediate?

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Q. When phenol is reacted with $CHCl_{3}$ and $NaOH$ followed by acidification, salicyladehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediate?

Alcohols Phenols and Ethers

Solution:

Riemer-Tiemann reaction involves electrophilic substitution on the highly reactive phenoxide ring
$HCCl_{3}+OH^{-} \to H_{2}O+^{-}: CCl_{3}$
$: \overset{-}{C}\,Cl_{3} \to Cl^{-}+ \underset{\text{C has only a sextet of electrons}}{{:CCl_{2}}}$
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