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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%

CAS Number
131274-22-1
Synonyms
Fluoroboric acid tri-tert-butylphosphine adduct
Tri-tert-butylphosphine fluoroboric acid adduct

Size Price ($) Quantity Availability
1g 73.88
5g 253.38
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Tri-tert-butylphosphonium tetrafluoroborate, 97%

MDL
MFCD07189501

Chemical Properties

Formula
C12H28BF4P
Formula Weight
290.13
Melting point
266-267°
Sensitivity
Hygroscopic
Solubility
Soluble in methylene chloride and chloroform. Slightly soluble in terahydro furan. Insoluble in hexane, toluene and water.

Applications

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.

Notes

Incompatible with strong oxidizing agents and halogens.

Literature References

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.

GHS Hazard and Precautionary Statements

Hazard Statements: H315-H319-H335

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

Precautionary Statements: 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.

Other References

Beilstein
8813613
Harmonized Tariff Code
2931.90
TSCA
No

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