Introduction: An effective Cu-complex, [Cu(NH3)4SO4 • H2O] was prepared conveniently from the inexpensive and easily available starting reagents in a simple route.

Materials and Methods: Excellent reactivity of the catalyst was observed towards two competent clickcycloadditions: (a) oxidative cycloaddition of azides with electron-poor olefins and (b) one-pot cycloaddition of alkynes with boronic acid and sodium azide under “click-appropriate” conditions.

Results: No external oxidant, short reaction time, high product yield, wide substrate scope, and aqueous solvent media make the azide-olefin cycloaddition approach a greener route in contrast to the reported methods.

Conclusion: The newly developed mild, green, and rapid three-component strategy shows product diversity with superb yields at room temperature by reducing the synthetic process time and using only 1 mol % of the synthesized copper complex.

简介：一种有效的铜络合物[Cu（NH3）4SO4•H2O]是通过廉价且容易获得的起始试剂通过简单的方法方便地制备的。

材料和方法：在两种有效的单击环加成反应中观察到了优异的催化剂反应性：（a）叠氮化物与电子贫烯烃的氧化环加成反应；和（b）在“单击适当”条件下，炔烃与硼酸和叠氮化钠的一锅环加成反应条件。

结果：与报道的方法相比，没有外部氧化剂，反应时间短，产物收率高，底物范围宽和水性溶剂介质使叠氮化物-烯烃环加成反应路线更绿色。

结论：新开发的温和，绿色和快速的三组分策略通过减少合成过程时间并仅使用1 mol％的合成铜络合物，显示了在室温下具有优异收率的产品多样性。