Alkynes react with organoborons under a CO atmosphere in the presence of a rhodium(I) catalyst to afford mainly 5-aryl-2(5H)-furanones, α,β-unsaturated ketones, and indanones. The product selectivity can be tuned by modifying the reaction conditions.
Synthesis of Trisubstituted Alkenes via Direct Oxidative Arene–Alkene Coupling
作者:Roderick C. Jones、Michał Gałęzowski、Donal F. O’Shea
DOI:10.1021/jo401326f
日期:2013.8.16
2-disubstituted alkene oxidative couplings, providing an efficient route to trisubstitutedalkenes. The acetonitrile cosolvent dramatically accelerates the rate of reaction, and an insoluble inorganic oxidant limits unwanted oxidation of substrates. The scope of this procedure is illustrated with arenes and alkenes containing electron-donating and -withdrawing substituents resulting in a general synthetic
Copper-Catalyzed Hydroarylation of Internal Alkynes: Highly Regio- and Diastereoselective Synthesis of 1,1-Diaryl, Trisubstituted Olefins
作者:Gregory D. Kortman、Kami L. Hull
DOI:10.1021/acscatal.7b01847
日期:2017.9.1
The scope of the reaction is presented with respect to alkyne and aryl iodide coupling partners. Initial mechanistic experiments indicate a hydrocupration event followed by a two-electron oxidative addition/reductive elimination pathway.