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8.21166

Sigma-Aldrich

Trifluoromethanesulfonic acid

for synthesis

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别名:
Trifluoromethanesulfonic acid, Triflic acid, TFMS
经验公式(希尔记法):
CHF3O3S
CAS号:
分子量:
150.08
MDL编号:
EC索引号:
216-087-5

蒸汽压

10 hPa ( 55 °C)

质量水平

形式

liquid

效能

1605 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)

pH值(酸碱度)

<1 ( in H2O)

bp

162 °C/1013 hPa

密度

1.71 g/cm3 at 20 °C

储存温度

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

InChI key

DXJURUJRANOYMX-UHFFFAOYSA-L

一般描述

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.

应用

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.

象形图

CorrosionExclamation mark

警示用语:

Danger

危险分类

Acute Tox. 4 Oral - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

靶器官

Respiratory system

储存分类代码

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

闪点(°F)

332.1 °F - Pensky-Martens closed cup

闪点(°C)

> 166.7 °C - Pensky-Martens closed cup


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Trifluoromethanesulfonic acid and derivatives
R. D. Howells & J. D. Mc Cown JD
Chemical Reviews, 77, 69-69 (1977)
Solid Phase Peptide Synthesis, Pierce Chemical Company, Rockford, 1984.
J. Stewart, J. Young
Solid Phase Peptide Synthesis (1984)
Highly efficient p-toluenesulfonic acid-catalyzed alcohol addition or hydration of unsymmetrical arylalkynes
Olivi N, et al.
Synlett, 2004, 2175-2179 (2004)
L. R. Subramanian, et al.
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2001)
1,2-Cis Selective Glycosylation with Glycosyl Fluoride by Using a Catalytic Amount of Trifluoromethanesulfonic Acid (TfOH) in the Coexistence of Molecular Sieve 5? (MS5?)
Jona H, et al.
Chemistry Letters (Jpn), 29, 1278-1279 (2000)

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