Table of Contents
- 1 Why is methyl carbanion more stable as compared to tertiary carbanion give reason?
- 2 How do you know which carbanion is more stable?
- 3 Which one of the carbanion is least stable?
- 4 Which of the following carbanion is most stable?
- 5 What is the effect of the phenyl ring on the carbanion?
- 6 Is triphenyl methyl carbocation more stable than dicyclopropylmethyl carbocation?
Why is methyl carbanion more stable as compared to tertiary carbanion give reason?
Alkyl group has +I effect. Hence primary carbanion with one alkyl group is, therefore, more stable than secondary (with two alkyl groups) which in turn is more stable than tertiary (with three alkyl groups). In methyl carbanion, H has not any appreciable inductive effect, so it is most stable.
How do you know which carbanion is more stable?
The greater the s-character of the charge-bearing atom, the more stable the anion; The extent of conjugation of the anion. Resonance effects can stabilize the anion.
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. Electron attracting groups like -NO2 and -Br will stabilise carbanion by partial removal of negative charge on carbon.
Which of the following carbanion is more stable PH ch2?
ph-ch2(free radical) is most stable. ch2=ch(free radical)(allyl) is more stable than ch3-ch2(free radical)(primary).
Which one of the carbanion is least stable?
HC≡ CH(25);(C6H5)3CH(31.5),CH4(48),(CH3)3CH(.> 51)Thus(CH3)3C− is least stable.
Which of the following carbanion is most stable?
Answer:primary carbanion is the most stable carbanion. Explanation: Primary carbanion has only one alkyl group and the increase in electron density is less on the carbon atom. Hence primary carbanion is most stable.
Which of the following carbanion is most stable methyl t butyl?
Answer:primary carbanion is the most stable carbanion.
What is the difference between triphenylmethane and diphenyl methane carbanion?
In triphenylmethane carbanion there is the steric hindrance of 3 phenyl groups due to which the planes for resonance are not properly aligned for proper resonance stabilisation. This effect is called ‘Steric Inhibition of Resonance’ but this is not the case in diphenyl methane carbanion and effective resonance stabilisation takes place.
What is the effect of the phenyl ring on the carbanion?
Talking in the terms of inductive effect, the phenyl rings show a positive inductive effect, which means it expels electrons from itself. This in turn destabilizes the carbanion even more since the negative charge increases. Above effects are profound in triphenyl structure as opposed to the diphenyl structure.
Is triphenyl methyl carbocation more stable than dicyclopropylmethyl carbocation?
From this, it is seen that PhCH2 (+) is highly stable than other carbenium ions. So, it isn’t wrong to say that triphenyl methyl carbocation is more stable than dicyclopropylmethyl carbocation. Guys, if you get or know any reference, plz inform me about that. , Knows some of it, sort of.. 😉
Which is more stable tert-butyl or triphenylmethyl cation?
For example, triphenylmethyl cation is far more stable than tert-butyl cation, tricyclopropylmethyl cation is more stable than triphenylmethyl cation. Therefore, there is no one answer to this question.