[3]Dendralene Synthesis: Rhodium(III)-Catalyzed Alkenyl C[BOND]H Activation and Coupling Reaction with Allenyl Carbinol Carbonate


  • We thank N. Kuhl, N. Schröder, C. Nimphius, C. Weitkamp, and D. Dietrich for experimental support. This work was supported by the European Research Council under auspices of the European Community’s Seventh Framework Program (FP7 2007–2013/ERC grant agreement no. 25936) and by the Alexander von Humboldt Foundation (D.-G.Y.). The research of F.G. has been supported by the Alfried Krupp Prize for Young University Teachers of the Alfried Krupp von Bohlen und Halbach Foundation.


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[3]DendrAl(l)ene! A new synthesis of [3]dendralenes is based on a RhIII-catalyzed alkenyl C[BOND]H activation and coupling reaction with allenyl carbinol carbonates (see scheme; DG=directing group). A variety of [3]dendralenes with diverse substitution patterns are accessible with good efficiency. The reaction is highly stereoselective and compatible with different directing groups and numerous functional groups.