Show how cyclohexanone might be converted to the following $\mathbf{\delta }$- diketone .

Organic conversion is the method of converting one functional group compound to another, e.g., converting the amide functional group to the carboxylic acid group.

This method is used to make a particular functional group compound with the help of a substrate and a particular reagent.

Cyclohexanone on reacting with base pyrrolidine in the presence of acid forms 1-cyclohexnylpyrrolidine.

Cyclohexnylpyrrolidine nucleophile (Michael donor) reacts to the $\mathrm{\beta }$carbon atom of an $\mathrm{\alpha },\mathrm{\beta }$unsaturated system of but-3-en-2-one(Michael acceptor) by 1,4-addition to give an enolate ion.

Protonation occurs on oxygen to give an enol which on tautomerization changes to keto form, thus getting the desired $\mathrm{\delta }$- diketone product 2-(3-oxobutyl)cyclohexanone.

Formation of 2-(3-oxobutyl)cyclohexanone