A magnetically separable ruthenium catalyst was synthesized through immobilizing a pentamethylcyclopentadienyl ruthenium complex on iron oxide nanoparticles. The catalyst is highly active and selective for the synthesis of 1,5-disubstituted 1,2,3-trizoles via cycloaddition of alkynes and organic azides and can be recycled at least 5 times.
通过将五
甲基环戊二烯基钌络合物固定在
氧化铁纳米颗粒上来合成可磁分离的
钌催化剂。该催化剂对
炔烃和有机
叠氮化物的环加成反应具有很高的活性,对合成1,5-二取代的
1,2,3-三唑具有选择性,可循环使用至少5次。