When phenol is treated with CHCl_3 and NaOH f | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The reaction described is the Reimer-Tiemann reaction. $1$. First,$CHCl_3$ reacts with $OH^-$ to generate the electrophile dichlorocarbene,$:CCl_2

Vedclass · Accepted Answer

Both $(B)$ and $(C)$

Vedclass · Answer

(D) The reaction described is the Reimer-Tiemann reaction. $1$. First,$CHCl_3$ reacts with $OH^-$ to generate the electrophile dichlorocarbene,$:CCl_2$. $2$. The phenoxide ion attacks the dichlorocarbene to form a cyclohexadienyl anion intermediate,which is represented by structure $(B)$. $3$. This intermediate undergoes a proton shift to form the ortho-dichloromethyl phenoxide ion,which is represented by structure $(C)$. $4$. Therefore,both $(B)$ and $(C)$ are intermediates involved in the mechanism of the Reimer-Tiemann reaction.

When phenol is treated with $CHCl_3$ and $NaOH$ followed by acidification,salicylaldehyde is produced. Which of the following intermediates is involved in the above reaction?

Similar Questions

Identify product $B$ in the following reaction sequence:
$(CH_3)_2C=C(CH_3)_2$ $\xrightarrow{X_2, H_2O} A$ $\xrightarrow{OH^{-}} B$

Identify the product $(A)$ in the following reaction:

Write the chemical reactions for the following conversions:
$1.$ Phenol to Anisole and Phenetole
$2.$ Chlorobenzene to $p$-Bromoanisole

In the given esterification reaction,the labelled $^{18}O$ will be found in:

Identify $A$ in the following reaction.

Vedclass Test Series

Exam Paper Generator

Online Exam Module