Question: A carbocation is resonance stabilized when it is adjacent to an oxygen atom: Such a carbocation is even more stable than a tertiary carbocation. Using

A carbocation is resonance stabilized when it is adjacent to an oxygen atom:

Resonance stabilized

Such a carbocation is even more stable than a tertiary carbocation. Using this information, propose a mechanism for the following transformation exhibited by a diol. This reaction is called a pinacol rearrangement:

Он но H2SO4 Нeat

Resonance stabilized H2SO4 eat

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