Methyl salicylate,commonly found in topical muscle relaxants,has the following structure: Which of the following signals is NOT expected to be observed in its NMR spectrum?

Question

Methyl salicylate,commonly found in topical muscle relaxants,has the following structure:  Which of the following signals is NOT expected to be observed in its NMR spectrum?

Quizplus · Accepted Answer

The molecule contains only one proton-containing group aside from the aromatic ring, and that is a methyl group (-CH3) which would give a singlet at around 2 ppm in the NMR spectrum. Therefore, the quartet at about 7 ppm (4H) is not expected to be observed as there are no protons in the molecule that would give rise to a quartet signal.

Methyl Salicylate,commonly Found in Topical Muscle Relaxants,has the Following Structure