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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 13,86
100ml 33,30
500ml 137,70
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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-H314-H318-H302-H312-H411-H401

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

Dichiarazioni precauzionali: P210-P222-P260-P273-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P422a-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Do not allow contact with air. Do not breathe dust/fume/gas/mist/vapours/spray. Avoid release to the environment. 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 SWALLOWED: Rinse mouth. Do NOT induce vomiting. Store locked up. Store contents under inert gas. 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
2931.90
TSCA
Yes
RTECS
SZ3270000

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