Question: Compound A, C 8 H 10 O 2 , has an intense JR absorption at 1750 cm ?1 and gives the 13 C NMR spectrum

Compound A, C8H10O2, has an intense JR absorption at 1750 cm?1 and gives the 13C NMR spectrum shown. Propose a structure for A.

219 8 TMS 200 180 160 140 120 40 O ppm 80

219 8 TMS 200 180 160 140 120 40 O ppm 80 60 20 100 Chemical shift (8) Intensity

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