Provide the major product for the following oxidation reaction.

• A.
• B.
• C.
• D.

Answer: (D)

Verified step by step guidance

1. Identify the reaction type: The reaction involves ozonolysis, which is a method used to cleave alkenes using ozone (O₃) followed by a reductive workup, typically with zinc (Zn) and acetic acid (CH₃CO₂H).
2. Analyze the starting material: The starting compound is a cyclohexene with a methyl group attached to the double bond. The double bond is the site of ozonolysis.
3. Predict the cleavage of the double bond: Ozonolysis will cleave the double bond, resulting in the formation of two carbonyl groups. Each carbon atom of the double bond will be converted into a carbonyl group (either aldehyde or ketone).
4. Consider the reductive workup: The use of Zn and CH₃CO₂H in the second step indicates a reductive workup, which typically converts ozonolysis products into aldehydes or ketones rather than carboxylic acids.
5. Determine the major product: The major product will be a compound with two carbonyl groups formed from the cleavage of the double bond. The structure will include a ketone at the position where the methyl group was attached and an aldehyde at the other end of the cleaved double bond.