91Ó°ÊÓ

IR spectroscopy is used for the identification of the functional groups in the given compound.

In the given compound, IR spectra peaks in the region 1500${\text{cm}}^{\text{-1}}$ and 1600${\text{cm}}^{\text{-1}}$ which indicate the presence of a benzene ring with hydrogen bonded to ${\text{sp}}^{\text{2}}$carbon atom. Also, the absorption band in 1250-1000${\text{cm}}^{\text{-1}}$ indicates the presence of role="math" localid="1652271799324" $\text{C-O}$bond.

The two singlets integrate into 3 protons suggesting the presence of two methyl groups. Also, the peak at 6.7-7.1 ppm indicates the presence of a benzene ring consisting of two doublets integrated with two hydrogens indicating the presence of 1, 4 di-substituted benzene ring.

The structure of the compound is as follows;

Given compound