Question

Compound A has the molecular formula C10H14.

a) Calculate the unsaturation number or IHD.

b) Provide the molecular ion observed in the mass spectrum, including its units.

c) Propose a structure based on the carbon-13 NMR spectrum given.

CH3 CH Compound A CDCl3 160 140 120100 80 60 40 20 0

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to tha 132 (G1) (2) 133.6所 (C) 令c Clis CH3 1,2,4,5-tchamothylbanunA

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