Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives

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Bruice 8th Edition

Ch. 16 - Reactions of Aldehydes and Ketones • More Reactions of Carboxylic Acid Derivatives

Problema 54b

Capitolo 16, Problema 54b

What are the products of the following reactions?
b.

Guida verificata passo dopo passo

Step 1: Identify the reactants. The first reactant is benzoyl chloride (C6H5COCl), which contains a benzene ring attached to a carbonyl group and a chlorine atom. The second reactant is a Gilman reagent, specifically lithium di-n-propylcuprate ((CH3CH2CH2)2CuLi).

Step 2: Understand the reaction mechanism. Gilman reagents are organocuprates that are commonly used for nucleophilic substitution reactions. They selectively react with acyl chlorides to form ketones, replacing the chlorine atom with the alkyl group from the Gilman reagent.

Step 3: Predict the product. The Gilman reagent ((CH3CH2CH2)2CuLi) donates one of its alkyl groups (n-propyl, CH3CH2CH2) to the carbonyl carbon of benzoyl chloride, replacing the chlorine atom. This results in the formation of a ketone.

Step 4: Write the structure of the product. The product will be a ketone with the benzene ring (C6H5) attached to the carbonyl group, and the n-propyl group (CH3CH2CH2) attached to the carbonyl carbon. The chemical structure of the product is C6H5COCH2CH2CH3.

Step 5: Verify the reaction conditions. Ensure that the reaction proceeds under appropriate conditions, typically in a nonpolar solvent like ether, and at a low temperature to prevent side reactions.

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