Triphenylphosphine (IUPAC name: triphenylphosphane) is a common organophosphorus compound with the formula P(C6H5)3 and often abbreviated to PPh3 or Ph3P. It is widely used in the synthesis of organic and organometallic compounds. PPh3 exists as relatively air stable, colorless crystals at room temperature.

Application

Triphenylphosphine (TPP) is prepared by reacting triphenylphosphine dichloride (TPPCl 2) with magnesium, aluminum and/or iron in the presence of an inert solvent, employing a TPPCl 2 solution whose content of phosgene, chlorine, diphosgene, hydrogen chloride, thionyl chloride, sulfuryl chloride, phosphorus trichloride,