Excellent ligand properties
Strong coordination ability: Phosphorus atoms have a lone pair of electrons, which can form stable complexes with various transition metals (such as Pd, Pt, Rh, Ni, etc.), making it one of the most commonly used phosphine ligands in homogeneous catalysis.
Highly efficient reducing ability
Thermodynamically driven: Reduction reactions often produce thermodynamically stable triphenylphosphine oxides (strong P=O bond), driving the reaction.
Selective Reduction: Can be used to reduce peroxides, ozonides, epoxides, azides, etc., with high selectivity and few byproducts.
Wide Applicability and Stability
Stable Physical Properties: White crystalline solid at room temperature, melting point 79–81°C, boiling point approximately 377°C, non-flammable.
Good Solubility: Easily soluble in common organic solvents such as benzene, ether, chloroform, and acetone; insoluble in water, facilitating use in non-aqueous systems.
Relatively Convenient Storage: Although requires protection from light, sealing, and drying, it is more resistant to air oxidation than alkylphosphine (such as tributylphosphine).
