NEETChemistryAlcohols Phenols and Ethers
In Kolbe’s reaction, instead of phenol, phenoxide ion is treated with carbon dioxide. Why?
Options
- APhenoxide ion is more readily available and stable than phenol.
- BPhenoxide ion is a stronger base and can deprotonate phenol to form the nucleophilic species.
- CIn phenoxide ion, the ability to give a lone pair of electrons to the benzene ring is more in comparison to ph
- DPhenoxide ion is less stable and reacts more readily with carbon dioxide to form the desired product.
Correct answer
C. In phenoxide ion, the ability to give a lone pair of electrons to the benzene ring is more in comparison to ph
Step-by-step solution
Correct Option is : (C) In phenoxide ion, the ability to give a lone pair of electrons to the benzene ring is more in comparison to phenols. Therefore.the reactivity of phenoxide ion towards electrophilic substitution reaction is more in comparison to phenols.Thus, phenoxide ion being a stronger nucleophile reacts easily with CO 2 , (weak electrophile) than phenols in Kolbe's reaction.