Methylenecyclopentane can be exposed to allylic bromination conditions to give multiple regioisomeric compounds, including Compound X. Compound X can then be hydrogenated to give Compound Y, which has only 4 distinct resonances in the proton-decoupled ¹³C NMR spectrum. What are the structures of compounds X and Y?

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The Answer of Methylenecyclopentane can be exposed to allylic bromination conditions to give multiple regioisomeric compounds, including Compound X. Compound X can then be hydrogenated to give Compound Y, which has only 4 distinct resonances in the proton-decoupled ¹³C NMR spectrum. What are the structures of compounds X and Y?

Methylenecyclopentane Can Be Exposed to Allylic Bromination Conditions to Give