Highly Active Mononuclear NAC–Gold(I) Catalysts


  • M.C.B.J. and J.M.S.-B. are grateful to the DAAD for fellowships. Gold salts were generously donated by Umicore AG & Co. KG. NAC=N-acyclic carbene.


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One gold is enough: Mononuclear, homogeneous gold catalysts displayed excellent catalytic activity on the order of that previously reported for gold nanoparticle catalysts and surface-bound gold complexes. In the model synthesis of spiro compounds (see picture) extremely high turnover numbers were achieved with only 0.000001 mol % of a silsesquioxane-substituted catalyst.