Ruthenium Hydride Catalyzed Silylvinylation of Internal Alkynes Using Ethylene as an Additive
2015
Wilson, Robert J. | Kaminsky, Lauren | Ahmed, Ijaz | Clark, Daniel A.
An efficient synthetic strategy for the regiospecific silylvinylation of internal alkynes is described. This transformation is catalyzed by RuHCl(CO)(SIMes)PPh₃ and provides a net 5-exo-dig trans-silylvinylation of internal alkynes. Ethylene was used to decrease reaction times and displayed altered selectivity at increased pressure. Furthermore, alkyl-substituted alkynes were acceptable substrates at 80 psi of ethylene.
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