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Triisopropyl phosphite

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Triisopropyl phosphite Basic information

Product Name:
Triisopropyl phosphite
Synonyms:
  • PHOSPHOROUS ACID TRIISOPROPYL ESTER
  • phosphorous acid tris(1-methylethyl) ester
  • Phosphorus isopropoxide
  • Phosphorus triisopropoxide
  • di-tert-butyl isopropyl phosphite
  • Phosphite isopropyl ester
  • Tris(propan-2-yl) phosphite
  • Triisopropyl phosphite,90%,tech.
CAS:
116-17-6
MF:
C9H21O3P
MW:
208.24
EINECS:
204-130-0
Product Categories:
  • organophosphorus compound
  • Building Blocks
  • Chemical Synthesis
  • Organic Building Blocks
  • Organic Phosphates/Phosphites
  • Phosphorus Compounds
  • Organic Building Blocks
  • Organic Phosphates/Phosphites
  • Phosphorus Compounds
Mol File:
116-17-6.mol
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Triisopropyl phosphite Chemical Properties

Boiling point:
63-64 °C11 mm Hg(lit.)
Density 
0.844 g/mL at 25 °C(lit.)
vapor pressure 
<2 mm Hg ( 20 °C)
refractive index 
n20/D 1.411(lit.)
Flash point:
154 °F
storage temp. 
-20°C
form 
Liquid
Specific Gravity
0.844
color 
Clear
Water Solubility 
Insoluble
Sensitive 
Moisture Sensitive
BRN 
1701528
LogP
2
CAS DataBase Reference
116-17-6(CAS DataBase Reference)
NIST Chemistry Reference
Phosphorous acid, tris(1-methylethyl) ester(116-17-6)
EPA Substance Registry System
Phosphorous acid, tris(1-methylethyl) ester (116-17-6)
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Safety Information

Hazard Codes 
T,F
Risk Statements 
25-38-68
Safety Statements 
37-46-45-36/37
RIDADR 
UN 3278 6.1/PG 3
WGK Germany 
3
RTECS 
TH2800000
1-10
Hazard Note 
Toxic/Flammable/Moisture Sensitive/
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29209090
Hazardous Substances Data
116-17-6(Hazardous Substances Data)

MSDS

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Triisopropyl phosphite Usage And Synthesis

Chemical Properties

Colorless liquid; characteristic odor. Miscible with most common organic solvents; insoluble in water; hydrolyzes slowly in water; exposure to air should be minimum; high thermal stability. Combustible.

Uses

Triisopropyl phosphite can be used as a reactant:

  • With Ru-based indenylidene complexes to form 1st generation complexes for metathesis reactions.
  • In Perkow-type reaction to synthesize compounds containing polarized carbon-carbon double bonds.
  • For the synthesis of phosphonohydrazines by reacting with arylamines and isoamyl nitrite.

It can also be used as an alternative to triphenylphosphine in Mitsunobu reaction to facilitate the isolation of products.

Uses

Intermediate for insecticides, component of vinyl stabilizers, lubricant additive, specialty solvent.

Purification Methods

Distil it from sodium, under vacuum, through a column packed with glass helices. (This removes any dialkyl phosphonate.) [Ford-Moore & Williams J Chem Soc 1465 1947, Arbuzov Chem Ber 38 1171 1905, see Verkade & Coskren in Organo Phosphorus Compound (Kosolapoff & Maier eds) Wiley Vol 2 pp 1-187 1972, Beilstein 1 IV 1476.]

Triisopropyl phosphite Preparation Products And Raw materials

Raw materials

Triisopropyl phosphiteSupplier

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