Question

Propose a structure for the compound with the formulaC₁₉H₉NO₂ and the following IR and NMR spectra

Short answer

The Structure should be

Step-by-step solution

Apply the given formula

The Given Formula is,$\text{C19H9NO2}$

A set of instauration and fused benzene rings. The IR bond 1724 cm^-1 corresponds to the nitrile stretching and the bonds 1600 cm^-1 to the carbonyl group.

Draw the Structure of the reaction

Therefore, The proton of the group is deshielded and hence the resulting NMR.

The structure has been drawn