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.
Selective Ruthenium-Catalyzed Hydrochlorination of Alkynes: One-Step Synthesis of Vinylchlorides
作者:Sylvie Dérien、Hubert Klein、Christian Bruneau
DOI:10.1002/anie.201505144
日期:2015.10.5
direct and selectivealkynehydrochlorination is reported and leads to vinylchlorides in excellent yields with atom economy. The reaction proceeds at room temperature from terminal alkynes and provides a variety of chloroalkenes. Only the regioisomer resulting from the formal Markovnikov addition is selectively formed. Mechanistic studies show the stereoselective syn addition of HCl to alkynes at room