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791-28-6 - Triphenylphosphine oxide, 99% - A12455 - Alfa Aesar

A12455 Triphenylphosphine oxide, 99%

Codice CAS
791-28-6
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
25g 17,24
100g 42,44
500g 163,11
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Triphenylphosphine oxide, 99%

MDL
MFCD00002080
EINECS
212-338-8

Proprietà chimiche

Formula
C18H15OP
Peso formula
278.29
Punto di fusione
153-159°
Punto di ebollizione
360°
Punto di infiammabilità
180°(356°F)
Densità
1.200
Solubilità
Soluble in polar organic solvents. Slightly soluble in hexane and diethyl ether. Insoluble in water.

Applicazioni

Triphenylphosphine oxide is used as a catalyst, Lewis base, ligand for metals and starting material for the preparation of other phosphorus compounds. It is also used in epoxidations, Michael reactions and coupling reactions. It reacts with copper(II) halides and form coordination complexes of Copper(II). Further, it acts as a crystallization aid for chemical compounds. In addition to this, it is used for processing, extraction, separation and spectrophotometric determination of cadmium and mercury.

Note

Incompatible with strong oxidizing agents.

Letteratura

The reagent prepared from a 2:1 molar ratio of the phosphine oxide and triflic anhydride is a useful dehydrating agent, e.g. for preparation of nitriles from amides or oximes, or of amides from acids and amines: J. Org. Chem., 52, 4137 (1987). In combination with triethylamine, the reagent also dehydrates activated ketones to alkynes: Synthesis, 217 (1989).

Zhang, Y.; Miyake, J.; Akiyama, R.; Miyatake, K. Ladder-type aromatic block copolymers containing sulfonated triphenylphosphine oxide moieties as proton conductive membranes. Polymer 2015, 77, 152-155.

Sun, D.; Fu, Q.; Ren, Z.; Li, H.; Ma, D.; Yan, S. Synthesis of well-defined poly(phenylcarbazole-alt-triphenylphosphine oxide) siloxane as a bipolar host material for solution-processed deep blue phosphorescent devices. Polym. Chem. 2014, 5 (1), 220-226.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H402-H412

Harmful if swallowed. Harmful to aquatic life. Harmful to aquatic life with long lasting effects.

Dichiarazioni precauzionali: P273-P264-P270-P301+P312-P330-P501a

Avoid release to the environment. Wash thoroughly after handling. Do not eat, drink or smoke when using this product. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. Rinse mouth. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
745854
Codice tariffe armonizzato
2931.90
TSCA
Yes
RTECS
SZ1676000

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