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प्रश्न
In Kolbe’s reaction, instead of phenol, phenoxide ion is treated with carbon dioxide. Why?
उत्तर
Phenoxide ion is more reactive than phenol towards electrophilic substitution. The negative charge on oxygen is transferred to benzene through resonance. This helps in the attachment of CO2 which is a weak electrophile to the benzene ring finally giving salicylic acid.
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संबंधित प्रश्न
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to aldehyde.
Lucas test is used for the detection of _____________.
By which of the following methods alcohol can be prepared in excellent yield?
Suggest a reagent for the following conversion.
Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tert-butyl ether can’t be prepared by this method. Explain.
What happens when (CH3)3 C – OH is heated with Cu/573 K?
Write the chemical equation in support of your answer.
Which of the following observation is shown by 2-phenyl ethanol with Lucas Reagent?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
