The isopropyl group is an interesting side chain that ishydroxylated at the secondary carbon and at either ofthe equivalent methyl groups

The isopropyl group, also known as 2-propanol or propan-2-ol, is a branched alkyl group with the formula $\text{C}_3\text{H}_7$. Structurally, it consists of a central carbon atom that is attached to two methyl groups ($\text{CH}_3$) and one hydroxyl group (-OH) attached to a secondary carbon.

When discussing hydroxylation of the isopropyl group at the secondary carbon, it refers to the addition of a hydroxyl group (-OH) to the secondary carbon of the isopropyl chain. This can result in the formation of isopropanol, which is a common alcohol used as a solvent and in cleaning products.

The equivalence of the methyl groups means that modifying one of these groups would not significantly change the overall structure or properties of the isopropyl chain, since both methyl groups are identical in the context of chemical reactions.

Isopropyl groups contribute significantly to the physical and chemical properties of many compounds in organic chemistry, affecting their reactivity, solubility, and interaction with biological systems. The study of such modifications is essential in understanding various biological processes and in the design of pharmaceuticals.