Prof. Dr. Vincent Lavallo, James H. Wright II, Dr. Fook S. Tham and Sean Quinlivan Perhalogenated Carba-closo-dodecaborate Anions as Ligand Substituents: Applications in Gold Catalysis Angewandte Chemie International Edition 52
Bigger and better! The single-component zwitterionic gold catalyst formed by the coordination of a phosphine ligand bearing an inert and noncoordinating carborane substituent, CB11Cl11−, to an AuI ion exhibited the highest reported activity for the hydroamination of alkynes with amines (see scheme). The highest turnover number observed for hydroamination with this catalyst exceeded a stunning 95 000.
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