Advertisements
Advertisements
प्रश्न
Explain why nucleophilic substitution reactions are not very common in phenols.
Advertisements
उत्तर
The C – O bond in phenols has some double-bond character due to resonance and hence cannot be easily cleaved by nucleophiles. So, nucleophilic substitution reactions are not very common in phenols and they give many electrophilic substitution reactions.
APPEARS IN
संबंधित प्रश्न
Write the mechanism of the following reaction:
Write the mechanism of the following reaction :
Give the equation of the following reaction:
Oxidation of propan-1-ol with alkaline KMnO4 solution.
Write the mechanism (using curved arrow notation) of the following reaction :
Lucas test is used for the detection of _____________.
Dehydration of 2-butanol yields:
The compound which gives the most stable carbonium ion on dehydration is:
Cyclohexene is best prepared from cyclohexanol by which of the following:
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.
Why is the C – O – H bond angle in alcohols slightly less than the tetrahedral angle whereas the C – O – C bond angle in ether is slightly greater?
What is Lucas reagent?
The correct geometry around oxygen in CH3OCH3 is
Which of the following alcohols will not undergo oxidation?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
