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2283-11-6 - Hexaethyl phosphorous triamide, 97% - Tris(diethylamino)phosphine - A12490 - Alfa Aesar

A12490 Hexaethyl phosphorous triamide, 97%

CAS Number
2283-11-6
Synonyms
Tris(diethylamino)phosphine

Size Price ($) Quantity Availability
5g 45.49
25g 141.11
100g 419.20
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Hexaethyl phosphorous triamide, 97%

MDL
MFCD00009041
EINECS
218-920-8

Chemical Properties

Formula
[(CH3CH2)2N]3P
Formula Weight
247.37
Boiling Point
245-246°
Flash Point
58°(136°F)
Density
0.903
Refractive Index
1.4737
Sensitivity
Air Sensitive
Solubility
Insoluble in water.

Applications

Hexaethyl phosphorous triamide is used in the Barton syntheses of hindered alkenes, involving desulfurization of small-ring heterocycles with elimination of nitrogen or carbon dioxide. It is also used as a reagent for selective vicinal dehalogenation of halogenated alkanes to give perhalogenated alkenes. The method has potential for the synthesis of highly fluorinated and mixed fluoro-halo alkenes.

Notes

Keep container tightly sealed. Store in cool, dry conditions in well sealed containers. Incompatible with oxidizing agents. It is sensitive to air. Store under dry inert gas.

Literature References

Theodor Reetz. Trialkyl Phosphite Borines. A New Type of Phosphorus-boron Compound. J. Am. Chem. Soc. 1960, 82, (19), 5039-5042.

Liming Jiang.; Zhiquan Shen.; Yuhui Yang.; Yifeng Zhang. Synthesis of ultra-high molecular weight polystyrene with rare earth-magnesium alkyl catalyst system: general features of bulk polymerization. Polymer International. 2001, 50 (1), 63-66.

Reducing agent, compare Hexamethyl­phosphorous triamide, A12571.

For use in the Barton syntheses of hindered alkenes, involving desulfurization of small-ring heterocycles with elimination of nitrogen or carbon dioxide, see: Chem. Commun., 1225, 1226 (1970):

Reagent for selective vicinal dehalogenation of halogenated alkanes to give perhalogenated alkenes. The method has potential for the synthesis of highly fluorinated and mixed fluoro-halo alkenes: J. Org. Chem., 57, 5018 (1992).

GHS Hazard and Precautionary Statements

Hazard Statements: H226-H315-H319-H335

Flammable liquid and vapour. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P210-P261-P280-P240-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
636187
Hazard Class
3
Packing Group
III
Harmonized Tariff Code
2921.29
TSCA
Yes

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