Propose the structure of the following C10H12O2 IR band:

Last updated: 7/23/2022

Propose the structure of the following C10H12O2 IR band: peak at 1720 cm-¹ ¹H NMR: triplet, 2.53 ppm, 2H triplet, 2.85 ppm, 2H singlet, 3.60 ppm, 3H singlet, 7.19ppm, 1H doublet, 7.23 ppm, 2H doublet, 7.28 ppm, 2H