A highly efficient copper(I)-catalyzed azideâalkyne cycloaddition (CuAAC) of 6-substituted tetrazolo[1,5-a]pyridines was developed for the preparation of 1-(pyridin-2-yl)-1,2,3-triazoles by simply using copper(I) acetate as a catalyst. The in situ formed HOAc played important dual roles and an activation of 2-azidopyridineâcopper(I) complex was observed.
研究人员开发了一种高效的
铜(I)催化
叠氮烷烃环加成反应(Cu
AAC),只需使用
醋酸铜(I)作为催化剂,即可制备 6-取代的
四唑并[1,5-a]
吡啶的 1-(
吡啶-2-基)-
1,2,3-三唑。原位形成的 HOAc 发挥了重要的双重作用,并观察到 2-
叠氮吡啶与
铜(I)复合物的活化。