Predict the product of each of the following reactions.
(d)

검증된 단계별 안내

Identify the starting material: The structure shown is a sugar molecule, specifically a hexose, with a carboxylic acid group at the top and a primary alcohol group at the bottom.

Recognize the reagents: The reaction involves ferric sulfate (Fe2(SO4)3) and hydrogen peroxide (H2O2). This combination is often used as an oxidizing agent.

Determine the likely reaction: Given the presence of an oxidizing agent, the primary alcohol group at the bottom of the sugar molecule is likely to be oxidized to a carboxylic acid.

Predict the product: The oxidation of the primary alcohol group will result in the formation of a dicarboxylic acid, where both the top and bottom of the sugar molecule have carboxylic acid groups.

Consider stereochemistry: Ensure that the stereochemistry of the sugar molecule is maintained in the product, as the oxidation reaction does not affect the stereocenters in the middle of the molecule.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

주요 개념

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

Ruff Degradation

Ruff degradation is a chemical reaction used to shorten the carbon chain of aldoses by one carbon atom. It involves the oxidation of the aldose to an aldonic acid, followed by decarboxylation. In this reaction, the aldonic acid is treated with hydrogen peroxide and ferric sulfate, leading to the removal of the terminal carboxyl group as carbon dioxide, thus shortening the sugar by one carbon.

Aldonic Acids

Aldonic acids are a type of sugar acid derived from aldoses, where the aldehyde group is oxidized to a carboxylic acid. In the context of Ruff degradation, the aldose is first converted into an aldonic acid before decarboxylation occurs. This transformation is crucial as it sets the stage for the subsequent removal of the carboxyl group, facilitating the shortening of the carbon chain.

Decarboxylation

Decarboxylation is a chemical reaction that involves the removal of a carboxyl group, releasing carbon dioxide. In Ruff degradation, decarboxylation is the key step that results in the shortening of the sugar's carbon chain. The reaction conditions, including the presence of hydrogen peroxide and ferric sulfate, facilitate the decarboxylation of the aldonic acid, leading to the formation of a sugar with one less carbon atom.

Predict the product of each of the following reactions.(d)