Hydride shifts involve the migration of a hydrogen atom with its two bonding electrons from a less substituted carbon to a more substituted carbon, resulting in the transfer of positive charge to the more substituted carbon. This is often observed in carbocation rearrangements that occur during multi-step reactions.

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Hydride Shifts

Question 25

Multiple Choice

Hydride shifts

A) occur to form less highly substituted carbocations.
B) occur by transfer of an H⁺ between adjacent carbon atoms.
C) are observed only in single step reactions.
D) transfer positive charge to a more highly substituted carbon atom.

Correct Answer: