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90520

Sigma-Aldrich

Triethyloxonium tetrafluoroborate

≥97.0% (T)

Sinonimo/i:

Et3OBF4, Meerwein′s reagent, Triethyloxonium fluoroborate

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25 G
113,00 €
100 G
335,00 €

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25 G
113,00 €
100 G
335,00 €

About This Item

Formula condensata:
(C2H5)3O(BF4)
Numero CAS:
Peso molecolare:
189.99
Beilstein:
3598090
Numero MDL:
Codice UNSPSC:
12352001
ID PubChem:
NACRES:
NA.22

113,00 €


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Livello qualitativo

Saggio

≥97.0% (T)

Stato

crystals

contiene

1-3% ether as stabilizer

Solubilità

methylene chloride: 20 mg/mL, clear, colorless

Gruppo funzionale

ether

Temperatura di conservazione

2-8°C

Stringa SMILE

F[B-](F)(F)F.CC[O+](CC)CC

InChI

1S/C6H15O.BF4/c1-4-7(5-2)6-3;2-1(3,4)5/h4-6H2,1-3H3;/q+1;-1
IYDQMLLDOVRSJJ-UHFFFAOYSA-N

Applicazioni

Triethyloxonium tetrafluoroborate can be used:
  • To prepare amino esters by reacting with lactams followed by hydrolysis.[1]
  • In the preparation of substituted imidazolines from aziridines and nitriles via [3+2]-cycloaddition reaction.[2]
  • For the N-alkylation of a series of N-arylsulfonyl-α-amino acid methyl esters having variable substituents at 4th position of the sulfonamide aromatic ring.[3]

Altre note

Powerful ethylating agent[4][5]; Esterification of acids[6]; Modifies carboxyl residues in proteins[7][8]

Pittogrammi

Corrosion

Avvertenze

Danger

Indicazioni di pericolo

Classi di pericolo

Eye Dam. 1 - Skin Corr. 1B

Rischi supp

Codice della classe di stoccaggio

8A - Combustible, corrosive hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Certificati d'analisi (COA)

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Visita l’Archivio dei documenti

M.J. Diem et al.
The Journal of Organic Chemistry, 42, 1801-1801 (1977)
D.J. Raber et al.
The Journal of Organic Chemistry, 44, 1149-1149 (1979)
The identification of aspartic acid residue 52 as being critical to lysozyme activity.
S M Parsons et al.
Biochemistry, 8(10), 4199-4205 (1969-10-01)
Synthesis of substituted imidazolines via [3+ 2]-cycloaddition of aziridines with nitriles
Prasad BAB, et al.
Tetrahedron Letters, 45(6), 1137-1141 (2004)
N-Alkylation of N-arylsulfonyl-α-amino acid methyl esters by trialkyloxonium tetrafluoroborates
De Marco R, et al.
Tetrahedron, 67(50), 9708-9714 (2011)

Domande

1–2 di 2 domande  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 risposta
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Utile?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 risposta
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Utile?

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