Addition Reaction of 1-Butanol with HBr

Hard Organic Chemistry Addition Reactions

A primary alcohol, such as butanol, can undergo an addition reaction with hydrogen bromide (HBr) to form an alkyl bromide. This reaction proceeds through the formation of a carbocation intermediate. The mechanism of this reaction involves several key steps, including protonation of the alcohol, carbocation formation, and nucleophilic attack by bromide. Consider the possible products formed when 1-butanol reacts with HBr.

Which statement correctly describes the expected major product of the addition reaction of 1-butanol with HBr in a typical acid-catalyzed process?

The major product will be 1-bromobutane, as the reaction proceeds via a primary carbocation.

The major product will be 2-bromobutane, resulting from rearrangement to form a more stable carbocation.

The major product will be butyl bromide and water, with no carbocation intermediate formed.

The major product will be dibromobutane, due to multiple addition reactions.

Hint

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