(Oxybis(2,1-phenylene))bis(diphenylphosphine)

Application

(Oxybis(2,1-phenylene))bis(diphenylphosphine) serves as a versatile ligand demonstrated to enhance catalytic efficiency across a broad range of chemical reactions. It appears as a white to off-white crystalline powder and plays a critical role in multiple applications, such as facilitating ruthenium-catalyzed greener amine synthesis from amines and alcohols using hydrogen-borrowing techniques. Additionally, it's involved in the N-alkylation of amines and sulfonamides via borrowing hydrogen methodology and is an effective ligand in Pd-catalyzed formation of diaryl amines. The product finds utility in the C3 benzylation of indoles and monoallylation of ammonia. It is employed in palladium-catalyzed aerobic oxidation coupling of acyl chlorides with arylboronic acids, the carbonylation of aryl iodides, and direct C-H arylation of benzothiodiazoles. Other notable uses include its role in stereo-retentive azacyclization of propargylic carbonates and benzyne trimerization catalyzed by palladium.