Abstract
The first example of the reaction of an isolated gold(I) complex with an aryl halide to form a C–C bond is reported. The reactivity of (NHC)Au(I)–R complexes towards a wide range of electrophiles was investigated. The Au–C σ-bond is shown to exhibit low nucleophilicity, but it is reactive towards MeI and MeOTf to form toluene, biphenyl and ethane, most likely through an oxidative mechanism. Carbon dioxide is completely unreactive. The experimental findings are supported by theoretical calculations.
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