E2 Reactions Flashcards
1
Q
Electrons from the C-H sigma bond are _________ atrracted into the vacant sigma antibinding orbital associated with the ajacent C-X
A
Hyperconjugatively
2
Q
What is the pKa of Nucleophile (base) in E2 mechanism?
A
> 10
3
Q
What is the driving force of E2
A
Large decrease in basicity
4
Q
What is the rate law for E2
A
Rate=k[base][alkyl halide]
5
Q
SN2 is favoured if…
A
- The reactants are sterically free
2. The nucleophile is too basic
6
Q
E2 is favoured if…
A
- The reactants are sterically hindered
2. The nucleophile is very basic
7
Q
Is OH- a good nucleophile in ethanol
A
No because of hydrogen bonding interaction trapping OH-. But its a strong base
