Why is benzyl cation stable?
Benzylic carbocations are so stable because they have not one, not two, but a total of 4 resonance structures. This shares the burden of charge over 4 different atoms, making it the MOST stable carbocation. Some professors will rank a primary benzylic carbocation under or near a tertiary carbocation.
Why benzyl cation is more stable than allyl cation?
Generally, the benzylic carbocations are more stable than allylic carbocations as they form more number of resonating structures and have less electron affinity.
Why is benzyl cation more stable than tertiary butyl cation?
Benzylic is more stable because of the priority given to resonance. Like when inductive effect, hyperconjugation and resonance occur together, resonance is given preference then hyperconjugation and then inductive effect. In this case it’s resonance. Moreover the explanation of aromaticity also favours this answer.
Is benzyl cation more stable than methyl cation?
Reason : Benzyl cation is more stable than methyl cation.
How is a benzyl cation stabilized?
The p system of a benzene ring can stabilise an adjacent carbocation by donating electron density through resonance.
Why is benzyl carbocation more stable than ethyl carbocation?
Because ethyl carbocation has only one carbon to help stabilize sigma plus charge whereas in benzyl ring, there are five carbons present and according to the Zaitzev’s rule, the more carbon around C+, the more stability it has. Was this answer helpful?
Why benzyl carbocation is more stable than propyl carbocation?
Benzyl carbocation is more stable due to the presence of resonance.
Which of the following benzyl carbocation is more stable?
p-methyl benzyl carbocation (I) is more stable than benzyl carbocation (II).
Which is more stable benzyl carbocation or methyl carbocation?
Why benzyl carbocation is more stable explain with help of resonance structures?
Hint: The benzyl carbocation is a resonance stabilized carbocation. It has four resonance structures which makes its stability good. It shares the charges of four different atoms making itself the most stable.
Why benzyl carbocation is more stable than ethyl carbocation?
Why is benzyl Carbanion more stable?
However, allyl and benzyl carbanions are as usual more stable due to resonance. Thus, Carbanion is more stable than due to electron withdrawing -I effect of the chloro group.
Why is benzyl carbocation stable than ethyl carbocation?
Is benzyl cation stable?
Benzyl carbocation is most stable because of delocalization of charge due to resonance of π electrons in the ring.
Why is benzyl Carbanion more stable than propyl Carbanion?
Stability of Carbanions: Benzyl carbanion is much more stable than propyl carbanion since it can be stabilised by resonance. Stability of carbanions is influenced by inductive and resonance effects. Stabilisation of carbanion by inductive effect is in the opposite direction from the carbonium ion.
Why is benzyl carbocation more stable than ethyl carbo cation?
Why is benzyl carbanion more stable than allyl carbanion?
Benzyl carbanion is more stable due to more delocalisation of negative charge. Stability is directly proportional to number of resonant structure and benzyl carbanion has more resonant structure than allylic carbanion.
Why is benzyl carbanion more stable?
What makes benzyl cations more stable than hydrocarbons?
Putting the positive charge on more carbon atoms makes the benzyl cation more stable. Acetate vs phenolate anions: Here, unlike the hydrocarbon actions mentioned above, oxygen enters the picture.
Which is more stable benzyl or tertiary?
Which carbocation is more stable : Benzyl or Tertiary? Actually answers of this question is always confusing, most of the authors believe benzyl carbocation is more stable than tertiary because benzyl carbocation involves in resonance.
What is the difference between allyl and benzyl cations?
Allyl vs benzyl cations: Both contain onlybhydrogen and carbon, with the positive charge formally distributed over two carbon atoms in allyl versus four carbon atoms. Putting the positive charge on more carbon atoms makes the benzyl cation more stable.
How to compare the stability of different compounds that undergo resonance?
For comparing the stability of different compounds that undergo resonance, I was taught to first check for equivalent resonance, then the number of atoms on which the delocalization was taking place and so on (e.g phenolate ion vs acetate ion)