Cu(<scp>i</scp>) catalysis for selective condensation/bicycloaromatization of two different arylalkynes: direct and general construction of functionalized C–N axial biaryl compounds
enantioselectivity verifies its potential for the simplest asymmetric synthesis of atropoisomeric biaryls. Western blotting demonstrated that the newly developed compounds are promising targets in biology and pharmaceuticals. This unique reaction can construct structurally diverse C–N axial biarylcompounds that have never been reported by other methods, and might be extended to various applications in materials
Cu(0)/Selectfluor System-Mediated Mild Synthesis of Fluorinated Fluorenones from Nonaromatic Precursors (1,6-Enynes) Involving C–C Single Bond Cleavage
作者:Jian Zhang、Heng Wang、Shaobo Ren、Wei Zhang、Yunkui Liu
DOI:10.1021/acs.orglett.5b01110
日期:2015.6.19
A novel and facile method for the mild construction of fluorinated fluorenones from nonaromatic precursors (1,6-enynes) mediated by a Cu(0)/Selectfluor system has been successfully achieved. Preliminary mechanistic investigations indicate that the reaction may proceed via an unprecedented annulation/C–C single bondcleavage/fluorination sequence.
Palladium-Catalyzed Cascade Decarboxylative Amination/6-<i>endo-dig</i> Benzannulation of <i>o</i>-Alkynylarylketones with <i>N</i>-Hydroxyamides To Access Diverse 1-Naphthylamine Derivatives
An efficient and practical one-pot strategy to produce highly substituted 1-naphthylamines via sequential palladium-catalyzed decarboxylative amination/intramolecular 6-endo-dig benzannulation reactions has been described. In this reaction, a broad range of electron-rich, electron-neutral, and electron-deficient o-alkynylarylketones react well with N-hydroxyl aryl/alkylamides to give a diversity of
Palladium-Catalyzed Selective Synthesis of Naphthalenes and Indenones and Their Luminescent Properties
作者:Xiaopeng Chen、Jisong Jin、Ningning Wang、Ping Lu、Yanguang Wang
DOI:10.1002/ejoc.201101506
日期:2012.2
Selectivesynthesis of functionalized naphthalenes and indenones by palladium-catalyzed cyclization of o-haloacetophenones and terminal alkynes in the presence of a secondary amine is reported. Under a nitrogen atmosphere, the palladium-catalyzed reaction of o-haloacetophenones with terminal alkynes in the presence of wet secondary aminesgenerated 1-(dialkylamino)-3-aryl/alkylnaphthalenes. When the
A rhodium-catalysed Sonogashira-type coupling exploiting C–S functionalisation: orthogonality with palladium-catalysed variants
作者:Milan Arambasic、Manjeet K. Majhail、Robert N. Straker、James D. Neuhaus、Michael C. Willis
DOI:10.1039/c9cc00092e
日期:——
A rhodium(i) catalyst mediates selective and efficient coupling reactions between arylmethylsulfides and terminal alkynes to provide Sonogashira-like products.