Used as a highly active catalyst in cross-coupling reactions, especially in Suzuki-Miyaura and Buchwald-Hartwig aminations. Its electron-rich phosphine ligands enhance reactivity with sterically hindered and electron-deficient substrates, enabling efficient carbon-carbon and carbon-nitrogen bond formation. Commonly applied in the synthesis of pharmaceuticals, agrochemicals, and organic electronic materials. The ligand structure improves catalyst stability and turnover, allowing reactions to proceed under mild conditions with low catalyst loading.