Advertisements
Advertisements
प्रश्न
Explain Kolbe’s reaction.
Advertisements
उत्तर
Kolbe’s (or) Kolbe’s Schmit reaction:
In this reaction, phenol is first converted into sodium phenoxide which is more reactive than phenol towards electrophilic substitution reaction with CO2. Treatment of sodium phenoxide with CO2 at 400 K, 4-7 bar pressure followed by acid hydrolysis gives salicylic acid.
APPEARS IN
संबंधित प्रश्न
Which of the following compounds on reaction with methyl magnesium bromide will give tertiary alcohol.
Isopropyl benzene on air oxidation in the presence of dilute acid gives ___________.
Assertion: Phenol is more reactive than benzene towards electrophilic substitution reaction
Reason: In the case of phenol, the intermediate arenium ion is more stabilized by resonance.
Predict the major product, when 2-methyl-but-2-ene is converted into alcohol in the following method.
Hydroxylation using bayers reagent
How is phenol prepared from isopropyl benzene?
Write the chemical equation for Williamson's synthesis of 2-ethoxy-2-methyl pentane starting from ethanol and 2-methyl pentan-2-ol.
What will be the product (X and A) for the following reaction?
\[\ce{acetylchloride ->[i) CH3MgBr][ii) H3O^+] X ->[acid K2Cr2O7] A}\]
Draw the major product formed when 1-ethoxyprop-1-ene is heated with one equivalent of HI
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride ->[i) CH3MgBr][ii) H3O] X ->[acid K2Cr2O7] A}\]
What will be the product (X and A)for the following reaction
\[\ce{acetylchloride ->[i) CH3MgBr][ii) H3O^+]X ->[acid K2Cr2O7]A}\]
