Question

Show how you would accomplish the following conversions in good yields. You may use any necessary reagents.

Short answer

Reagent used is${\mathbf{Br}}_{\mathbf{2}}\mathbf{,}\mathbf{HOAc}$

Step-by-step solution

Step-by-Step Solution

Step 1: Reagent

A reagent is a substance that is added in the reaction to form the product from the reaction means they are used to complete the chemical reactions.

Alpha halogenation

It is a reaction shown by an enolate ion formed by aldehyde or ketone in which halogenation occurs at the alpha position to the carbonyl.

Reagent used in the reaction

As per the reaction given alpha halogenation is occur because the alpha hydrogen is replaced by the halogen.

The alpha hydrogen is the hydrogen of the carbon next to the carbonyl group so the hydrogen is removed and enolate is formed which on further reaction with the halogen forms alpha halo ketone by adding the halogen at the alpha position to the carbonyl.

Alpha halogenation reaction

For alpha halogenation reagent is used as shown:

Product Formation