Which of the following methods is used to prepare ketones?

Question

Quizplus · Accepted Answer

Ketones can be prepared by reacting a carboxylic acid derivative (such as an acid chloride or an ester) with a Grignard reagent. This results in the addition of the R group from the Grignard reagent to the carbonyl carbon, forming a ketone. Option A is incorrect because reduction of a carboxylic acid group would result in an alcohol, not a ketone. Option B is incorrect because water adds across a carbon-carbon double bond to form an alcohol, not a ketone. Option D is incorrect because the reaction described would result in an ester, not a ketone. Option E is incorrect because nucleophilic reactions of amines with carboxylic acid derivatives can form amides, not ketones.

Which of the Following Methods Is Used to Prepare Ketones