DIETHYL TRIMETHYLSILYL PHOSPHITE Property

Boiling point:

58-59 °C10 mm Hg(lit.)

Density 

0.921 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.413(lit.)

Flash point:

33 °C

Safety

Risk Statements 

10

Safety Statements 

23-24/25

RIDADR 

UN 1993 3/PG 3

WGK Germany 

3

F 

10-21

HazardClass 

3.2

PackingGroup 

III

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

DIETHYL TRIMETHYLSILYL PHOSPHITE Chemical Properties,Usage,Production

Uses

Diethyl Trimethylsilyl Phosphite acts as a reagent in the synthesis of substituted N-formylaminomethylenediphosphonates and derivatives. It also functions as a reagent in the synthesis of phosphonic analog of glutamic acid.

Uses

Diethyl trimethylsilyl phosphite was used in preparation of:

• diethyl 1-aryl-1-cyanomethanephosphonates
• unsymmetrical ketones
• ketones from aldehydes via α-trimethylsiloxy-phosphonates
• phosphonates

Purification Methods

Fractionate it under reduced pressure and has 3 1PMR: P -128ppm relative to H3PO4. [Sekine et al. J Org Chem 46 2097 1981, Chernyshev et al. J Gen Chem USSR (Engl Transl) 45 231 1975.]