8.21166

Trifluoromethanesulfonic acid

for synthesis

• Synonim(y): Trifluoromethanesulfonic acid, Triflic acid, TFMS
• Wzór empiryczny (zapis Hilla): CHF₃O₃S
• Numer CAS: 1493-13-6
• Masa cząsteczkowa: 150.08
• Numer MDL: MFCD00007514
• Kod UNSPSC: 12352106
• Numer indeksu EC: 216-087-5
• NACRES: NA.22

Właściwości

• ciśnienie pary: 10 hPa ( 55 °C)
• Poziom jakości: 200
• Postać: liquid
• siła działania: 1605 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• pH: <1 ( in H₂O)
• tw: 162 °C/1013 hPa
• gęstość: 1.71 g/cm³ at 20 °C
• temp. przechowywania: 2-30°C
• InChI: 1S/2CHF3O3S.Ba/c2*2-1(3,4)8(5,6)7;/h2*(H,5,6,7);/q;;+2/p-2
• Klucz InChI: DXJURUJRANOYMX-UHFFFAOYSA-L

Opis

Opis ogólny

Trifluoromethanesulfonic acid (also known as Triflic acid, TFMSA or TfOH) is an organic acid that is commonly used as a reagent in organic synthesis due to its strong Bronsted acidity, finding applications in catalysis, N-protection, dehydration, activation, and addition reactions.^, TFMSA is also used for global deprotection and cleavage in Boc SPPS.

Associated Protocols and Technical Articles
Cleavage and Deprotection Protocols for Boc SPPS

Literature references:
^[1] L. R. Subramanian, et al. (2001) Encyclopedia of Reagents for Organic Synthesis.
^[2] R. D. Howells & J. D. Mc Cown JD (1977) Chem. Rev., 77, 69.
^[3] J. Stewart, J. Young in “Solid Phase Peptide Synthesis”, Pierce Chemical Company, Rockford, 1984.

Zastosowanie

Recent applications of trifluoromethanesulfonic acid include:

• A dehydrating agent for the conversion of secondary alcohols to alkene, or the preparation of anhydrides from carboxylic acids.
• An acid catalyst in the synthesis of carbohydrates and glycosides.
• An activating agent for the activation of carboxylic acids and can be used for the synthesis of carboxylic acid derivatives such as esters, amides, and anhydrides.

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS05,GHS07
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H290 - H302 - H314 - H335
• Zwroty wskazujące środki ostrożności: P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Klasyfikacja zagrożeń: Acute Tox. 4 Oral - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
• Organy docelowe: Respiratory system
• Kod klasy składowania: 8A - Combustible, corrosive hazardous materials
• Klasa zagrożenia wodnego (WGK): WGK 1
• Temperatura zapłonu (°F): 332.1 °F - Pensky-Martens closed cup
• Temperatura zapłonu (°C): > 166.7 °C - Pensky-Martens closed cup