N-Arylpyridiniophosphines: Synthesis, Structure, and Applications in Au(I) Catalysis

The synthesis and characterization through NMR and X-ray crystallography of a series of N-arylpyridiniophosphines and their corresponding Au(I)-derivatives are reported. Because of their acceptor properties, pyridiniophosphines efficiently enhance the electrophilicity of the Au atom in the complexes they form. In our study, this is translated into higher reactivity of the corresponding Au catalysts, which is demonstrated in two mechanistically...