To manage a multitude of hydroxyl groups in sugars, carbohydrate chemists play a shell game of sorts, shuffling protecting groups to expose each alcohol at the right step in a synthesis. Researchers ...

Have you ever looked at a specification sheet and noticed that the OTR values differed for the same material under different humidity conditions?Even barrier materials that are supposed to be ...

Many molecules in living organisms and pharmaceuticals share a structure called a β-amino alcohol, in which an amino group and a hydroxyl group sit on neighboring carbon atoms. These groups, important ...

The method of determining the hydroxyl number in polyols and oxo alcohols specified in DIN EN ISO 4629-2 derives its theory from the catalytic acetylation of the hydroxyl group. Once the intermediate ...

To help chemists oxidize certain carbon-hydrogen bonds in complex organic molecules, researchers have developed a strategy to evolve enzymes capable of the task (J. Am. Chem. Soc., DOI: ...

Water treatment plants across the globe rely on ultraviolet light to generate hydroxyl radicals, the aggressive molecular fragments that rip apart pharmaceutical residues, pesticides, and industrial ...

The hydroxyl number denotes the quantity of potassium hydroxide (in milligrams) needed in order to neutralize acetic acid required for acetylation of 1 gram of an unsaturated polyester resin (UPR) ...

在实验室里，想要把糖类分子“嫁接”到聚合物上，往往是一件让化学家头疼的事。糖分子结构中布满了性质相似的羟基（Hydroxyl group），就像一串长得一模一样的钥匙，想要精准地在其中一把上进行化学修饰，难度极高，往往需要繁琐的多步合成。