Interpretation:
The transition state of the reaction between
Concept introduction:
Tertiary substrates and strong bases favor bimolecular reaction. Sodium ethoxide can act as a bulky strong nucleophile as well as a strong base. SN2 and E2 are two bimolecular reactions. They are concerted (one step) reactions.
In SN2 reaction, nucleophile cannot approach a tertiary
In E2 reaction, strong base can abstract the β-proton of a tertiary alkyl halide.
Transition state is a state in between the reactant and product.
In the transition state of E2 reaction: the abstraction of β-proton by the base, removal of leaving group (halo-group) and formation of double bond are taking place.
To draw: the transition state of the reaction between
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