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998-40-3 - Tri-n-butylphosphine, 95% - A12649 - Alfa Aesar

A12649 Tri-n-butylphosphine, 95%

Codice CAS
998-40-3
Sinonimi

Dimensioni Prezzo ($) Quantità Disponibilità
25ml 15,60
100ml 37,00
500ml 154,00
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Tri-n-butylphosphine, 95%

MDL
MFCD00009462
EINECS
213-651-2

Proprietà chimiche

Formula
C12H27P
Peso formula
202.32
Punto di fusione
-65°
Punto di ebollizione
240°
Punto di infiammabilità
>93°(199°F)
Densità
0.820
Indice di rifrazione
1.4620
Sensibilità
Air & Moisture Sensitive
Solubilità
Soluble in organic solvent such as heptane. Not miscible with water.

Applicazioni

Tri-n-butylphosphine is used as a catalyst modifier in the cobalt-catalyzed hydroformylation of alkenes for industrial use. It is also used as a strong reducing agent and polymerization cross-linking catalyst. It is a used as an intermediate for phase transfer catalysts.

Note

Air and moisture Sensitive. Store away from water/moisture and air. Store in cool dry place in tightly closed container.

Letteratura

K. Sonogashira; S. Takahashi; N. Hagihara. A New Extended Chain Polymer, Poly[trans-bis(tri-n-butylphosphine)platinum 1,4-butadiynediyl]. Macromolecules. 1977, 10(4), 879-880.

JA Maclaren; BJ Sweetman. The preparation of reduced and S-alkykated wool keratins using Tri-n-butylphosphine. Australian Journal of Chemistry. 1966, 19(12), 2355 - 2360.

A useful alternative to Triphenyl­phosphine, L02502 in many applications. Advantages include its greater reactivity and the water-solubility of the by-product phosphine oxide, simplifying its removal.

In combination with phenyl isocyanate and a Pd catalyst, converts cinnamyl alcohol directly to a phosphorane, which reacts with aldehydes to give conjugated dienes: Chem. Lett., 1449 (1988):

Can behave as a hypernucleophilic catalyst in acylation reactions, with similar results to 4-(Dimethyl­amino)­pyridine, A13016: J. Am. Chem. Soc., 115, 3358 (1993).

Effective catalyst for the Baylis-Hillman reaction with less tendency than the usual DABCO (1,4-Diazabicyclo[2.2.2]octane, A14003) to promote aldol type side reactions: J. Org. Chem., 62, 1521 (1997).

For example of its use in Mitsunobu-type reactions, see Diisopropyl­ azodicarboxyl­ate, L10386.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H250-H252-H302-H312-H314-H318

Catches fire spontaneously if exposed to air. Self-heating in large quantities; may catch fire. Harmful if swallowed. Harmful in contact with skin. Causes severe skin burns and eye damage. Causes serious eye damage.

Dichiarazioni precauzionali: P210-P222-P303+P361+P353-P305+P351+P338-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not allow contact with air. 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. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
1738261
Classe di rischio
4.2
Gruppo di imballaggio
I
Codice tariffe armonizzato
2931.39
TSCA
Yes
RTECS
SZ3270000

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