Chapter 21, Problem 36P

Interpretation Introduction

Interpretation:

The structure of the product for the given reaction is to be drawn.

Concept introduction:

Aldehydes and ketones contain carbonyl $\left(\text{C=O}\right)$ functional group in their parent chain. The halogenation of aldehyde or ketone takes place by the replacement of alpha proton to the carbonyl group by halogen.

The compounds that contain two ketone groups are commonly known as $\text{β-Diketones}$. The reaction in which the addition of an alpha carbon of an enolizable aldehyde or ketone to the carbonyl group of the second aldehyde or group takes place to form $\text{β-hydroxy}$ carbonyl compounds, such reaction is called as the aldol reaction.

The Organolithium cuprates $\left({\text{R}}_{\text{2}}\text{CuLi}\right)$ are used for the $\text{1,4-}$ addition or conjugate addition to the $\text{α,β-}$ unsaturated carbonyl compounds. The conjugated ketone is attacked by the nucleophilic carbon atom of the cuprate at the electrophilic carbon of alkene through nucleophilic addition reaction.