Propose a Structure That Fits the Following Spectroscopic Data:
C₄H₈O $\delta$

question 70

Essay

Propose a structure that fits the following spectroscopic data:
C₄H₈O
IR: 1728 cm⁻¹
Broadband decoupled ¹³C NMR: 13.71,15.69,45.82,202.80 $\delta$
DEPT Experiments show: signal at 13.71 $\delta$ as CH₃ and signals at 15.69,45.82 $\delta$ as CH₂

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