Which of the following correctly describes the relative nucleophilicities of met

Question

Which of the following correctly describes the relative nucleophilicities of methoxide and tertbutoxide?

A) These alkoxides have essentially the same nucleophilicities since the negative charge in both is

localized on an oxygen atom.

B) Methoxide is more nucleophilic because the nucleophilicity of tert-butoxide is diminished by

steric effects.

C) tert-Butoxide is more nucleophilic because it contains three methyl groups which increase the

charge on its oxygen by donating electron density.

D) tert-Butoxide is more nucleophilic because it is more basic.

E) none of the above

Explanation / Answer

B

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