Aryl Diazonium versus Iodonium Salts: Preparation, Applications and Mechanisms for the Suzuki-Miyaura Cross-Coupling Reaction

This review gives an overview of the use of unusual diazonium and iodonium salts as electrophiles for the Suzuki-Miyaura reaction. The discussion mainly focuses, with a critical view, on catalytic systems developed with these electrophiles. The review also discusses their general properties and preparation as well as mechanistic aspects. A last and brief comparison of diazonium versus iodonium salts, by highlighting advantages and drawbacks of both, gives the reader an understandable resume.