Diphenylphosphite
Diphenylphosphite is an organophosphite compound used in organic synthesis. Its formula is (C6H5O)2P(O)H, and the phosphorus atom has a tetrahedral geometry.
Appearance and basic properties:
- Colorless, viscous liquid
- Density: about 1.2268 g/cm3
- Melting point: 12 °C
- Molar mass: 234.19 g/mol
Preparation:
- It can be made by reacting phosphorus trichloride with phenol. Similar methods work for making related phosphite esters.
Reactions and uses:
- In the Kabachnik–Fields reaction, diphenylphosphite reacts with aldehydes and amines to form aminophosphonates, a useful class of phosphorus-containing compounds.
- Many analogous phosphite esters can be prepared in a similar way.
This page was last edited on 2 February 2026, at 15:14 (CET).