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      Low-valent Niobium-mediated Synthesis of Indenes: Intramolecular Coupling Reaction of CF3Group with Alkene C–H Bond

      , ,
      Chemistry Letters
      The Chemical Society of Japan

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          Selective Pd-catalyzed oxidative coupling of anilides with olefins through C-H bond activation at room temperature.

          Using a high-throughput experimentation approach we found a selective and mild Pd-catalyzed oxidative coupling reaction between anilide derivatives and acrylates that occurs through ortho C-H bond activation. The reaction is carried out in an acidic environment and occurs even at room temperature with use of a cheap oxidant (benzoquinone) in yields up to 91%. The benzoquinone possibly also functions as a ligand, stabilizing the catalyst. From the electronic dependence of the reaction and the observed kinetic isotope effect (kH/kD = 3) the key step of the catalytic cycle is believed to be electrophilic attack by a [PdOAc]+ complex on the pi-system of the arene.
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            Room-Temperature Catalytic Hydrodefluorination of C(sp3)−F Bonds

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              Rhenium-Catalyzed Formation of Indene Frameworks via C−H Bond Activation:  [3+2] Annulation of Aromatic Aldimines and Acetylenes

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                Author and article information

                Journal
                Chemistry Letters
                Chem. Lett.
                The Chemical Society of Japan
                0366-7022
                1348-0715
                January 2007
                January 2007
                : 36
                : 1
                : 24-25
                Article
                10.1246/cl.2007.24
                2253b831-44bf-4609-87d4-2b4931f94fd9
                © 2007
                History

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