Main TopicsWhy is phenol more basic?
Table of Contents
- Why is phenol more basic?
- Which is more basic phenol or benzene?
- Is Phenylamine more acidic than phenol?
- Which is more basic phenol or alcohol?
- What happens when phenol is treated with NaOH?
- What are examples of Phenols?
- Which is more stable aniline or phenol?
- How is phenol reactivity compared to toluene?
- Which is an electron donating group phenol or toluene?
- How do you make toluene from phenol and CH3Cl?
- Which is better hyperconjugation or resonance effect in toluene?
Why is phenol more basic?
Phenol is more acidic than ethanol. The conjugate base (phenoxide ion) formed after phenol loses a proton is resonance stabilized ( the electron density over the negatively charged O-atom gets delocalised over the benzene ring, stabilizing the ion).
Which is more basic phenol or benzene?
Benzene is mostly neutral in nature when subjected to pH. Aniline gets protonated easily in acidic medium so it acts as a pretty good base (by Bronsted-Lowry definition). Phenol is acidic, due to resonance the O-H bond often becomes weak and it is a proton donor (acid by Bronsted-Lowry definition).
Is Phenylamine more acidic than phenol?
On removing proton, negative charge on oxygen is more stable than it is on nitrogen (because of greater electronegativity of oxygen). Therefore, phenol is more acidic than aniline.
Which is more basic phenol or 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.
What happens when phenol is treated with NaOH?
Phenol reacts with sodium hydroxide solution to give a colourless solution containing sodium phenoxide. In this reaction, the hydrogen ion has been removed by the strongly basic hydroxide ion in the sodium hydroxide solution.
What are examples of Phenols?
Classification
| Phenol | the parent compound, used as a disinfectant and for chemical synthesis |
|---|---|
| Orthophenyl phenol | a fungicide used for waxing citrus fruits |
| Picric acid | (trinitrophenol) - an explosive material |
| Phenolphthalein | pH indicator |
| Xylenol | used in antiseptics & disinfectants |
Which is more stable aniline or phenol?
Therefore, phenol is more acidic than aniline. 2) +M effect of nitrogen is more than oxygen, so negative charge (after deprotonation) in the case of aniline will be more delocalized making the anion more stable. Therefore, aniline should be more acidic than phenol.
How is phenol reactivity compared to toluene?
You have to make a comparison between phenol and toluene. You have identified what toluene does, but you haven't described what phenol does. The hydroxyl group in phenol increases electron density in the ring by resonance (+M effect). Note that the methyl group in toluene increases electron density only by hyperconjugation and inductive effect.
Which is an electron donating group phenol or toluene?
But, according to me, the answer should be toluene. My reason: Toluene is an ortho-para directing group as well as an electron-donating group which increases the electron density at ortho-para position and activates the aromatic ring towards electrophilic substitution. Where I am wrong? You have to make a comparison between phenol and toluene.
How do you make toluene from phenol and CH3Cl?
1.It can be prepared by Reacting phenol in the presence of Zinc metal in the presence of heat and release ZnO and benzene will form. 2.In second step benzene react with Ch3Cl in the presence of anhydrous anhydrous AlCl3 and at last you will get toluene. Is toluene an alkene? Toluene is an alkene.
Which is better hyperconjugation or resonance effect in 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.
