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

A12490 Hexaethyl phosphorous triamide, 97%

Codice CAS
2283-11-6
Sinonimi
Tris(diethylamino)phosphine

Dimensioni Prezzo ($) Quantità Disponibilità
5g 45,49
25g 141,11
100g 419,20
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Hexaethyl phosphorous triamide, 97%

MDL
MFCD00009041
EINECS
218-920-8

Proprietà chimiche

Formula
[(CH3CH2)2N]3P
Peso formula
247.37
Punto di ebollizione
245-246°
Punto di infiammabilità
58°(136°F)
Densità
0.903
Indice di rifrazione
1.4737
Sensibilità
Air Sensitive
Solubilità
Insoluble in water.

Applicazioni

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.

Note

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.

Letteratura

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).

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H226-H315-H319-H335

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

Dichiarazioni precauzionali: 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.

Altri riferimenti

Beilstein
636187
Classe di rischio
3
Gruppo di imballaggio
III
Codice tariffe armonizzato
2921.29
TSCA
Yes

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