Which is more reactive towards electrophilic reagents, benzyl alcohol or phenol? – Quora. The ortho and para positions get enriched by a comparatively larger amount of electron density,in case of phenol as compared to benzyl alcohol. Hence phenol is more activated and more reactive towards EAS than benzyl alcohol.
Are phenols more reactive than alcohols?
Answer: Phenols react with aqueous sodium hydroxide to produce phenoxide ions. This indicates that the acidity of phenols is higher in comparison to the alcohols. The phenoxide ion is stabilized by the delocalization of negative charge due to the resonance in the benzene ring.
Is phenol less reactive than alcohol?
Phenol is more acidic than alcohols due to stabilisation of phenoxide ion through resonance. Presence of electron withdrawing group increases the acidity of phenol by , stabilising phenoxide ion while presence of electron releasing group decreases the acidity of phenol by destabilising phenoxide ion.
Why is phenol more reactive than benzene?
The increased reactivity compared to benzene is due to the lone pair of p-orbital electrons on the oxygen atom in the phenol group. The electron pair is delocalised into the ring structure, activating the ring. This increases the electron density of the molecule, which induces dipoles in the bromine molecule.
Why is phenol the most reactive?
phenols. Phenols are highly reactive toward electrophilic aromatic substitution, because the nonbonding electrons on oxygen stabilize the intermediate cation. This stabilization is most effective for attack at the ortho or para position of the ring; therefore, the hydroxyl group of a phenol is…
Why is phenol more reactive than ethanol?
Hint: Phenol loses its hydrogen ion to form the phenoxide ion which resonates and stabilizes itself and this loss of electrons makes the phenol more acidic than alcohol for example ethanol.
Why do phenols react differently from alcohols?
Since alcohols contain the hydroxyl group, they are capable of forming hydrogen bonds with other compounds like water. … Though the pH of an alcohol solution is almost neutral, they are still able to react with strong bases. Phenol is relatively strong an acid compared to alkyl alcohols.
Why is phenol not reactive?
Since, EN is a measure of how closely an electron can be attracted towards the element, less EN element, nitrogen has more tendancy to donate electrons as compared to more EN element, oxygen. Therefore, phenol is slightly less reactive than aniline toward electrophilic substitution reaction.
Why alcohols are easily protonated in comparison to phenols?
In alcohols the electron density on oxygen is high due to localization of its lone pair and electron donating nature of alkyl group. So their protonation is easy. However in phenols, the lone pair of oxygen is in resonance with the benzene ring and thus is delocalized. So protonation of phenols is difficult.
How is phenol a primary alcohol?
Alcohols and Phenols
A hydroxyl group is a hydrogen bonded to an oxygen that is covalently bonded to the rest of the molecule. … If this carbon is bonded to one other carbon atom, it is a primary (1o) alcohol.
Which is more reactive phenol or benzene?
Phenol is more reactive than benzene towards electrophilic substitution reaction. The donation of the oxygen’s lone pair into the ring system increases the electron density around the ring. That makes the ring much more reactive than it is in benzene. The intermediate carbocation is more resonance stabilized.
What is the difference between a phenyl and benzyl group?
The phenyl group is based simply on benzene, with one H removed. The benzyl group is based on methylbenzene (toluene), with one H removed from the methyl group.
What is difference between phenol and benzene?
Benzene and phenol are aromatic organic compounds. Benzene is an organic compound having the chemical formula C6H6 while Phenol is a white crystalline solid with molecular formula C6H6OH. The key difference between benzene and phenol is that phenol has a –OH group in place of a hydrogen atom in benzene.
Which is more reactive phenol or methyl benzene?
Toluene and Phenol are more reactive than benzene since their groups add electron density to the ring. Toluene’s methyl group adds electron density through the inductive effect, and the hydroxyl group in phenol can delocalise one of the lone pairs on the oxygen atom into the ring (demonstrated on the whiteboard).
What is the most reactive electrophile?
Therefore, o-hydroxy toluene is most reactive towards electrophilic reagent.
Is phenol more reactive than toluene?
Note that the methyl group in toluene increases electron density only by hyperconjugation and inductive effect. Resonance effects are generally far more superior to hyperconjugation. Hence, without doubt, phenol is more activated towards EAS as compared to toluene.