How many intermediates are there in the mechanism for the acid-catalyzed hydration of an alkene?

1 Answer
Jun 28, 2015

There are two intermediates in the mechanism for the acid-catalyzed hydration of an alkene.

Explanation:

In Step 1, the #"H"^+# adds to the alkene and forms a carbocation — the first intermediate.

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In Step 2, water attacks the carbocation and forms a protonated alcohol — the second intermediate.

In Step 3, water removes a proton from the oxonium ion and forms the product alcohol,

It is easy to identify the intermediates in a "progress of reaction" curve.
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The intermediates correspond to the dips in the curve.