Ir-Catalyzed Regio- and Stereoselective Hydrosilylation of Internal Thioalkynes: A Combined Experimental and Computational Study
作者:Li-Juan Song、Shengtao Ding、Yong Wang、Xinhao Zhang、Yun-Dong Wu、Jianwei Sun
DOI:10.1021/acs.joc.6b00854
日期:2016.8.5
However, the exploitation for selectivehydrosilylation of unsymmetrical internal alkynes has been limitedly known. Described here is a new example of this type. Specifically, [(cod)IrCl]2 catalyzes the efficient and mild hydrosilylation of thioalkynes by various silanes with excellent regio- and stereoselectivity. DFT studies suggested a new mechanism involving Ir(I) hydride as the key intermediate.
Iridium-Catalyzed Intermolecular Azide-Alkyne Cycloaddition of Internal Thioalkynes under Mild Conditions
作者:Shengtao Ding、Guochen Jia、Jianwei Sun
DOI:10.1002/anie.201309855
日期:2014.2.10
An iridium‐catalyzed azide–alkynecycloaddition reaction (IrAAC) of electron‐rich internal alkynes is described. It is the first efficient intermolecular AAC of internal thioalkynes. The reaction exhibits remarkable features, such as high efficiency and regioselectivity, mild reaction conditions, easy operation, and excellent compatibility with air and a broad spectrum of organic and aqueous solvents