(C) When phenol reacts with $CCl_4$ in the presence of aqueous $NaOH$,the reaction is a variation of the Riemer-Tiemann reaction. Instead of forming a

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(C) When phenol reacts with $CCl_4$ in the presence of aqueous $NaOH$,the reaction is a variation of the Riemer-Tiemann reaction. Instead of forming an aldehyde group (as with $CHCl_3$),the use of $CCl_4$ results in the introduction of a carboxylic acid group $(-COOH)$ at the ortho position of the phenol. The reaction is: $C_6H_5OH + CCl_4 + 4NaOH \rightarrow C_6H_4(OH)(COOH) + 4NaCl + 2H_2O$. The product formed is Salicylic acid.

Class 12 Chemistry 2 Aldehydes, Ketones and Carboxylic Acids: Carboxylic Acids and their Derivatives Preparation of Carboxylic Acids and Their Derivatives

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If we use pyrene $(CCl_4)$ in the Riemer-Tiemann reaction in place of chloroform,the product formed is

AIPMT 1989 All AIPMT

A
Salicylaldehyde
B
Phenolphthalein
C
Salicylic acid
D
Cyclohexanol

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2 Aldehydes, Ketones and Carboxylic Acids: Carboxylic Acids and their Derivatives

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Preparation of Carboxylic Acids and Their Derivatives

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AIPMT 1989 Paper All AIPMT years →

The major product in the following reaction is:

DifficultTS EAMCET 2018

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Describe the method for the preparation of carboxylic acids from nitrogen-containing compounds (nitriles) with suitable examples.

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Hydrolysis of $CH_3CH_2NO_2$ with $85\%$ $H_2SO_4$ gives

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Which of the following reaction sequences converts $R-CH_2CH_2OH$ into $R-CH_2CH_2COOH$?

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Identify the product formed in the following reaction.
$C_6H_5-CH_2-CH_3 \xrightarrow[ii) H_3O^{+}]{i) \text{alk. } KMnO_4} \text{Product}$

MediumMHT CET 2025

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If we use pyrene $(CCl_4)$ in the Riemer-Tiemann reaction in place of chloroform,the product formed is

Similar Questions

The major product in the following reaction is:

Describe the method for the preparation of carboxylic acids from nitrogen-containing compounds (nitriles) with suitable examples.

Hydrolysis of $CH_3CH_2NO_2$ with $85\%$ $H_2SO_4$ gives

Which of the following reaction sequences converts $R-CH_2CH_2OH$ into $R-CH_2CH_2COOH$?

Identify the product formed in the following reaction.$C_6H_5-CH_2-CH_3 \xrightarrow[ii) H_3O^{+}]{i) \text{alk. } KMnO_4} \text{Product}$

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Identify the product formed in the following reaction.
$C_6H_5-CH_2-CH_3 \xrightarrow[ii) H_3O^{+}]{i) \text{alk. } KMnO_4} \text{Product}$