午夜插插,噜噜噜影院,啪啪伊人网,欧美熟夫,景甜吻戏视频,男人强操性感蕾丝美女视频在线网站,日本美女跳舞视频

AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE

AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE Struktur
50281-51-1
CAS-Nr.
50281-51-1
Englisch Name:
AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE
Synonyma:
AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE
CBNumber:
CB92500543
Summenformel:
C6H18F6N6P2
Molgewicht:
350.1852612
MOL-Datei:
50281-51-1.mol

AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE Eigenschaften

Schmelzpunkt:
mp >250 °C
L?slichkeit
sol acetone, acetonitrile, DMF
Aggregatzustand
crystalline colorless solid

Sicherheit

AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE Chemische Eigenschaften,Einsatz,Produktion Methoden

Verwenden

Azidotris(dimethylamino)phosphonium hexafluorophosphate can be used as a coupling reagent for amide and peptide synthesis via acyl azides; it can undergo Curtius rearrangement in the absence of nucleophiles to give the corresponding isocyanates; it can be used to give iminophosphonates by irradiation; and it can be used as a diazo transfer reagent.

synthetische

Bromine (1 equiv) is added dropwise to Hexamethylphosphorous Triamide (1 equiv) in dry diethyl ether. After the addition is complete, Potassium Hexafluorophosphate (1 equiv), dissolved in H2O is added, and the solid formed is filtered and washed with H2O. After drying under vacuum, the solid is dissolved in acetone and Sodium Azide (1.5 equiv) is added. The mixture is stirred overnight at 25 °C, then the sodium bromide formed and the excess of sodium azide is filtered off and the solvent is removed under vacuum.

Lager

Azidotris(dimethylamino)phosphonium hexafluorophosphate is very stable, not hygroscopic, and can be stored indefinitely under vacuum. The related bromine derivative is an exceptionally safe azide, that does not detonate by shock, friction, rapid heating, or even flame. When used in combination with carboxylic acids, the potential carcinogenic Hexamethylphosphoric Triamide is a side-product and the reagent must be handled with caution.

AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 1)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Beijing dtftchem Technology Co., Ltd. 13651141086
dtftchem@sina.com China 3380 62

  • AZIDOTRIS(DIMETHYLAMINO)PHOSPHONIUM HEXAFLUOROPHOSPHATE
  • 50281-51-1
Copyright 2019 ? ChemicalBook. All rights reserved