First Heck reaction with arenediazonium cations with recovery of Pd-triolefinic macrocyclic catalyst

Article abstract of DOI:10.1021/ol034340b

(Matrix presented) The air- and moisture-stable phosphine-free palladium(0) complex 1 is a highly active and recoverable catalyst for Heck olefination of aryl diazonium tetrafluoroborates. The reactions were performed under aerobic conditions at room temperature to give the coupling products in excellent yields.