When phenol is reacted with CHCl_3 and NaOH f | vedclass

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Question

(D) The reaction described is the Reimer-Tiemann reaction. $1$. $NaOH$ reacts with $CHCl_3$ to generate the electrophilic intermediate dichlorocarbene

Vedclass · Accepted Answer

All of these

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(D) The reaction described is the Reimer-Tiemann reaction. $1$. $NaOH$ reacts with $CHCl_3$ to generate the electrophilic intermediate dichlorocarbene,$:CCl_2$. $2$. Phenol reacts with $NaOH$ to form the phenoxide ion,which is more reactive towards electrophilic substitution. $3$. The phenoxide ion undergoes electrophilic attack by $:CCl_2$ to form a dichloromethyl substituted intermediate. $4$. Since $:CCl_2$ and the phenoxide ion are both involved as intermediates in the reaction mechanism,and the dichloromethyl substituted species is also an intermediate,all the listed species are involved. Therefore,the correct option is $D$.

When phenol is reacted with $CHCl_3$ and $NaOH$ followed by acidification,salicylaldehyde is obtained. Which of the following species are involved in the above mentioned reaction as intermediates?

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