The stabilization caused by hyperconjugation is much less than that caused by resonance. Explain.
Phenols are stronger acids than alcohols because of the A. resonance stabilization of alcohols. B. resonance stabilization of alkoxide ions. C. resonance stabilization of phenoxide ions. OD. resonance stabilization of phenols. O E, hydrogen bonding in phenols.
2. (1 point) Define Zaitsev rule highlighting the role of hyperconjugation in stabilization of the products. 3. (1 point) Provide a mechanistic approach that will explain the outcome of E2 reaction in terms of regio- and stereoselectivity. Make use of Newman projections to support your answer. Nah all Natt a
More substituted alkenes are lower in potential energy than less substituted alkenes due to increased hyperconjugation. Draw the hyperconjugation model that shows the overlap between an antiperplanar C-H bond and a p-orbital of an alkene.
Which of the following would not normally lead to stabilization of a carbocation? Through space inductive effects Polarizability Torsional strain Hyperconjugation Through bond inductive effects Resonance delocalization
Provide a resonance structures which explain why ortho and para nitrophenol are much more acidic than phenol
6) Applying resonance. Amides such as acetamide (CH3CONH2) are much weaker bases than amines, such as ethylamine (CH3CH2NH2). Explain why (try resonance). Predict also how protonation (reaction with H+ ) of both species would go (again, resonance can help).
Could anyone explain why the first compound is more stable than
the one I circled? And also, why is resonance a stronger influence
and not induction? Thanks!
15. Circle one of the following charged compounds which is most stable. (3 Points) Which is the stronger influence for your choice? a) Resonance or b) Induction (hyperconjugation)? (2 Points)
* Incorrect. Explain why phenoxide is a much poorer nucleophile and weaker base than cyclohexoxide: Do Our -0. Nat -0. Nat Sodium phenoxide Sodium cyclohexoxide O The negative charge on phenoxide is stabilized by resonance and delocalized over multiple atoms. O The electron pairs in phenoxide are less available for nucleophilic reactions relative to cyclohexoxide because the electrons are delocalized due to resonance. O The electron pairs in cyclohexoxide are less available for nucleophilic reactions relative to phenoxide because the...
10. In class we discussed how hyperconjugation makes an H that is beta to a halide leaving group much more acidic than you would otherwise believe. Consider the following two molecules that undergo E2 eliminations One of the B C-H bonds is more acidic than the other, leading to a faster reaction. Which one and why? Your answer should involve a discussion of molecular orbitals and hyperconjugation.
What is hyperconjugation and how does this contribute to carbocation stability? Provide drawings to help explain your answer.