Zinc-Mediated Regiodiverse Synthesis of Vinyl Bromide Derivatives and Their in situ Palladium-Catalysed Cross-Coupling Reactions
作者:Gerhard Hilt、Anne Miersch、Corinna Kohlmeyer
DOI:10.1055/s-0033-1339616
日期:——
zinc-mediated addition of a benzylic bromide to a terminal alkyne. The geometry of the C=C bond is dependent on the amount of zinc powder applied. When 5 mol% of Zn is used, the Z-configured vinyl bromide is generated while with 150 mol% the E-geometry is obtained predominantly. In a three-component one-pot reaction, the in situ generated vinyl bromides were reacted further in a palladium-catalysed Suzuki