Propose a Structure for a Compound, with Molecular Formula C₅H₁₀O $\delta$

question 66

Essay

Propose a structure for a compound, with molecular formula C₅H₁₀O, that fits the following spectroscopic data:
IR: 1720 cm^-1
1H NMR: 1.1 $\delta$ (doublet, 6H), 2.1 $\delta$ (singlet, 3H), 2.7 $\delta$ (septet, 1H)
¹³C NMR: 15, 22, 45, 210

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Definitions:

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