Diphenylphosphine Synonyms

Diphenylphosphine Properties

Melting point	-14.5 °C
Boiling point	280 °C(lit.)
Density	1.07 g/mL at 25 °C
Vapor pressure	2 mm Hg ( 110 °C)
Refractive index	n20/D 1.625(lit.)
Flash point	-18°C (Hexane)
Storage temp.	2-8°C
Form	liquid
Color	colorless
Specific Gravity	0.68
Water Solubility	Miscible with ethanol, ether, benzene, concentrated hydrochloric acid. Immiscible with water.
Sensitive	Air & Moisture Sensitive

Diphenylphosphine Application

Diphenylphosphine acts as an intermediate in the preparation of diphenylphosphide derivatives, phosphonium salts, phosphine ligands, and Wittig-Horner reagents. The presence of hydrogen atom bonded to phosphorus undergoes Michael-like addition to activated alkenes. It is involved in the preparation of 1,2-bis(diphenylphosphino)ethane and (phenyl-(phenylmethyl)phosphoryl)benzene. Further, it is used in the synthesis of aminophosphines and chiral palladacycles with N-heterocyclic carbene ligands as catalysts.