Copper(II)-catalyzed synthesis of sulfones from sulfinate salts and aryl halides was investigated by means of a combination of experiment and DFT calculation. Experimental results demonstrated the wide applicability of the title approach. The reaction mechanisms are revealed by in-situ IR and theoretical study. It reveals remarkable ligand effect the bidentate amine plays in the reaction, that is, it initially activats the C-I bond of iodobenzene so as to enhance the whole catalytic process.

中文翻译：

---

在CS耦合下铜（II）催化亚磺酸盐和芳基卤化物合成砜的机理

通过实验和DFT计算相结合的方法，研究了铜（II）催化亚磺酸盐和芳基卤化物合成砜的方法。实验结果证明了标题方法的广泛适用性。通过原位红外和理论研究揭示了反应机理。它显示了二齿胺在反应中发挥的显着配体作用，即，它首先激活了碘苯的CI键，从而增强了整个催化过程。