Efficient copper-catalyzed tandem oxidative iodination and alkyne-azide cycloaddition in the presence of glycine-type ligands
作者:Donghe Yuan、Shilei Wang、Gongming Zhu、Anlian Zhu、Lingjun Li
DOI:10.1016/j.tet.2020.131911
日期:2021.2
described that a copper-catalyzed (10 mol%) tandem oxidativeiodination and alkyne-azide cycloaddition could be completed in the presence of the newly-found glycine-type ligands with low-cost NaI as the iodine resource. In the novel reaction system, a wide range of terminal alkyne, organic azide and inexpensive iodide could react effectively in one pot to give structurally diverse 5-iodo-1,4-subsitutied 1,2
A series of 4,5-substituted 1,2,3-triazoles was synthesised viaCu(I)-catalysed azide–alkyne 1,3-dipolar [2+3]-cycloaddition reactions followed by a Suzuki coupling. The 1,2,3-triazoles were evaluated as inhibitors of the p38α MAP kinase, showing IC50 values in the high nanomolar range.