tetramethylpiperidineoxyl (TEMPO)is a class of nitroxide radicals,which could selectively oxidize the primary alcohol of carbohydrate.

• 四甲基哌啶氧自由基(TEMPO)属于亚硝酰自由基类,能选择性氧化糖类物质的伯羟基,氧化产物的应用非常广泛。