Chloride-Tolerant Gold(I)-Catalyzed Regioselective Hydrochlorination of Alkynes
作者:Rene Ebule、Shengzong Liang、Gerald B. Hammond、Bo Xu
DOI:10.1021/acscatal.7b02567
日期:2017.10.6
We have developed a highly regioselective homogeneous gold(I)-catalyzed anti-hydrochlorination of unactivated alkynes at room temperature. We have overcome the incompatibility between conventional cationic gold catalysts and chloride by using a hydrogen-bonding activation of the Au–Cl bond. This approach is scalable, exhibits excellent functional group tolerance, and can be conducted in open air.
A Chlorinating Reagent Yields Vinyl Chlorides with High Regioselectivity under Heterogeneous Gold Catalysis
作者:Shengzong Liang、Rene Ebule、Gerald B. Hammond、Bo Xu
DOI:10.1021/acs.orglett.7b02101
日期:2017.9.1
A novel chlorinatingreagent with a high concentration of HCl has enabled the highly regioselective hydrochlorination of unactivated alkynes using a commercial nanogold catalyst. No overchlorination or hydration products were formed, and various functional groups were tolerated. This hydrochlorination method could be conducted under open air.