Heterothiometallic clusters as robust and efficient copper(I) catalysts for azide–alkyne [3 + 2] cycloadditions
作者:Xiao-Fei Gao、Wen-Mei Sun、Xiao-Miao Li、Xiao-Jun Liu、Long-Sheng Wang、Zheng Liu、Jun Guo
DOI:10.1016/j.catcom.2015.10.019
日期:2016.1
[NH4]2[MS4CunXn] (M = W, Mo; X = Br, I; n = 2, 4, 6) as novel copper(I) catalysts for Huisgen 1,3-dipolar cycloadditions. The experiments indicate that the thiometallic ligands can stabilize copper(I) ions and improve their solubility. Interestingly, these cluster compounds have very different catalytic performances in copper(I)-catalyzed azide–alkyne cycloadditions (CuAACs), which may correlate to their
我们研究了杂硫金属W(Mo)/ S / Cu团簇[NH 4 ] 2 [MS 4 Cu n X n ](M = W,Mo; X = Br,I; n = 2,4,6)作为新型铜( I)Huisgen 1,3-偶极环加成的催化剂。实验表明,硫金属配体可以稳定铜离子并提高其溶解度。有趣的是,这些簇化合物在铜(I)催化的叠氮化物-炔烃环加成(CuAAC)中具有非常不同的催化性能,这可能与其不同的氧化还原电位有关。簇[NH 4 ] 2 [MS 4 Cu 4 I 4业已发现]是一种非常坚固有效的CuAAC催化剂,并在室温下在极性溶剂或无溶剂条件下以优异的产率用于合成多种1,4-二取代的1,2,3-三唑。