Question

Draw two different ways to prepare each ketone from an acid chloride and an organocuprate reagent.

a.

b.

Short answer

Answer

The compounds used to prepare the given compounds are:

a.

b.

Step-by-step solution

Step-by-Step Solution Step 1: Use of organocuprate

Organocuprates convert acid chlorides into ketones. The alkyl part of the reagent attacks the electron-deficient carbonyl carbon.

Choosing the right organocuprate and acid chloride

When the product formed is a carbonyl compound, organocuprate is used since it stops the reaction at the carbonyl stage.

The reagent needed to prepare compound a. are:

Substrates and reagents used to prepare compound a.

The reagents needed to prepare compound b. are:

Substrates and reagents used to prepare compound b.