Question

What is hydroboration oxidation in alkenes?

Answer 1

Hydroboration-oxidation is a method of making alcohols from alkenes.

Explanation:

It involves the addition of `"BH"_3` to an alkene, followed by oxidation with alkaline hydrogen peroxide to form an alcohol.

The reaction is a Markovnikov addition of `"BH"_3` to the alkene

On oxidation of the boron intermediate, the `"OH"` group ends up on the less substituted carbon.

This is opposite to the position of the `"OH"` group in the acid-catalyzed Markovnikov addition of water to an alkene, so the reaction is often called the anti-Markovnikov addition of water to an alkene.