Predict the product of the following aldehyde and ketone addition reactions.

(c)

검증된 단계별 안내

Identify the functional groups in the starting material. The molecule contains a ketone group, which is characterized by a carbonyl group (C=O) bonded to two carbon atoms.

Recognize the reagent used in the reaction. CH₃MgBr is a Grignard reagent, which is a source of nucleophilic methyl anion (CH₃⁻). It is used to add carbon groups to carbonyl compounds.

Understand the mechanism of the reaction. The Grignard reagent will attack the electrophilic carbon atom of the carbonyl group in the ketone, forming a new carbon-carbon bond.

Consider the solvent and conditions. THF is a common solvent for Grignard reactions, providing a suitable environment for the reaction to proceed. The subsequent addition of H₃O⁺ (acidic quench) will protonate the alkoxide intermediate formed after the Grignard addition.

Predict the product. The reaction will result in the formation of a tertiary alcohol, where the methyl group from the Grignard reagent is added to the carbonyl carbon, and the oxygen is converted into an alcohol group after protonation.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Aldol Condensation

Aldol condensation is a reaction between aldehydes and ketones that involves the formation of a β-hydroxy aldehyde or ketone, followed by dehydration to yield an α,β-unsaturated carbonyl compound. This reaction is significant in organic synthesis as it allows for the formation of larger carbon skeletons and can lead to complex molecules.

Nucleophilic Addition

Nucleophilic addition is a fundamental reaction mechanism in organic chemistry where a nucleophile attacks an electrophilic carbon atom, typically in carbonyl compounds like aldehydes and ketones. This process is crucial for understanding how these compounds react to form new bonds and products, influencing the overall reaction pathway.

Reaction Mechanism

A reaction mechanism describes the step-by-step sequence of elementary reactions by which overall chemical change occurs. Understanding the mechanism of aldehyde and ketone reactions is essential for predicting products, as it reveals how reactants interact, the formation of intermediates, and the final products of the reaction.

Predict the product of the following aldehyde and ketone addition reactions.(c)