The copper(I)-catalyzed dipolar [2+3] cycloaddition reaction of an azide and a terminal alkyne is exploited in the preparation of various europium(III), terbium(III), and dysprosium(III) chelates (Schemes 1–3). By changing the nature of the alkyne and the azide, a wide range of chelates and biomolecule-labeling reactants were obtained. The photophysical properties (Table) of the synthesized chelates
叠氮化物和末端
炔烃的
铜(I)催化偶极[2 + 3]环加成反应被用于制备各种yne(III),ter(III)和(III)螯合物(方案1-3))。通过改变
炔烃和
叠氮化物的性质,获得了广泛的螯合物和
生物分子标记反应物。还讨论了合成螯合物的光物理性质(表)。