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131274-22-1 - Tri-tert-butylphosphonium tetrafluoroborate, 97% - Fluoroboric acid tri-tert-butylphosphine adduct - Tri-tert-butylphosphine fluoroboric acid adduct - L19752 - Alfa Aesar

L19752 Tri-tert-butylphosphonium tetrafluoroborate, 97%

Codice CAS
131274-22-1
Sinonimi
Fluoroboric acid tri-tert-butylphosphine adduct
Tri-tert-butylphosphine fluoroboric acid adduct

Dimensioni Prezzo ($) Quantità Disponibilità
1g 78,40
5g 251,00
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Tri-tert-butylphosphonium tetrafluoroborate, 97%

MDL
MFCD07189501

Proprietà chimiche

Formula
C12H28BF4P
Peso formula
290.13
Punto di fusione
266-267°
Sensibilità
Hygroscopic
Solubilità
Soluble in methylene chloride and chloroform. Slightly soluble in terahydro furan. Insoluble in hexane, toluene and water.

Applicazioni

Tri-tert-butylphosphonium tetrafluoroborate is a ligand used in the palladium-catalyzed enantioselective alfa-arylation of N-boc-pyrrolidine. It is also used with a palladium(0)-15-membered, triolefinic, macrocyle in Suzuki cross-coupling reactions of aryl bromides and chlorides. Further, it is used in the Heck coupling of vinyl tosylates with olefins.

Note

Incompatible with strong oxidizing agents and halogens.

Letteratura

Convenient, air-stable replacement for tri-tert-butylphosphine, e.g. in Suzuki, Heck, Stille and Sonogashira coupling reactions: Org. Lett., 3, 4295 (2001).

Takase, N.; Kuwabara, J.; Choi, S. J.; Yasuda, T.; Han, L.; Kanbara, T. Microwave-assisted polycondensation of 4-octylaniline with dibromoarylene. J. Polym. Sci., Part A: Polym. Chem. 2015, 53 (4), 536-542.

He, Y.; Zhang, X.; Fan, X. Synthesis of diversely substituted 2-(furan-3-yl)acetates from allenols through cascade carbonylations. Chem. Commun. 2015, 51 (90), 16263-16266.

Rischio GHS e dichiarazioni precauzionali

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

Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Dichiarazioni precauzionali: P261-P280-P305+P351+P338-P304+P340-P362-P312-P321-P405-P403+P233-P501a

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. 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. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). Store locked up. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Beilstein
8813613
Codice tariffe armonizzato
2931.90
TSCA
No

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