Bench-Stable and Recoverable Palladium(I) Dimer as an Efficient Catalyst for Heck Cross-Coupling

The application of air- and moisture-stable dinuclear palladium(I) complex [Pd(mu-I)(Pt-Bu-3)](2) as an efficient catalyst for the Heck cross-coupling reaction of aryl iodides and bromides with acrylates and styrenes is described. The developed protocol is robust and operationally simple and shows a high functional-group tolerance. The employed palladium(I) dimer catalyst is highly robust under these nucleophilic as well as elevated-temperature conditions, allowing its recovery after reaction completion and recycling.