Dehydrohalogenation of 2-bromo-2-methylbutane with a sterically bulky base like potassium tert-butoxide () predominantly yields:

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Question

Dehydrohalogenation of 2-bromo-2-methylbutane with a sterically bulky base like potassium tert-butoxide ($t-BuO^-$) predominantly yields:

Prashant Kotian · Accepted Answer

Correct answer: B. A bulky base cannot easily access hindered internal protons. It abstracts the exposed terminal protons, yielding the kinetically controlled, less substituted Hofmann alkene.

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