Application
4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene is an organophosphorus compound derived from the heterocycle xanthene, serving as a versatile bidentate ligand distinguished by its notably wide bite angle. Its primary purpose is to facilitate a wide array of catalytic transformations, which include hydroformylation, cross couplings, and various Pd, Cu, Rh, Ru, and Au-catalyzed reactions. This ligand plays a crucial role in enhancing reaction efficiency and selectivity, making it particularly valuable in the synthesis of complex organic compounds. Its utility extends across diverse applications such as the coupling of amides and hydrazones with aryl halides, hydrophosphinylation of alkenes and alkynes, sulfinylation, carbonylation, dehydrogenative silation, and the assembly of heterocycles. Whether used for direct arylation, decarboxylative coupling, or difunctionalization processes, this ligand is essential for advancing modern catalytic methodologies in organic chemistry.