8.21166

Trifluoromethanesulfonic acid

for synthesis

• 别名: Trifluoromethanesulfonic acid, Triflic acid, TFMS
• 经验公式（希尔记法）: CHF₃O₃S
• CAS号: 1493-13-6
• 分子量: 150.08
• MDL號碼: MFCD00007514
• 分類程式碼代碼: 12352106
• 酶委員會索引編號: 216-087-5
• NACRES: NA.22

属性

• 蒸汽壓力: 10 hPa ( 55 °C)
• 品質等級: 200
• 形狀: liquid
• 效力: 1605 mg/kg LD₅₀, oral (Rat); >2000 mg/kg LD₅₀, skin (Rat)
• pH值: <1 ( in H₂O)
• bp: 162 °C/1013 hPa
• 密度: 1.71 g/cm³ at 20 °C
• 儲存溫度: 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 密鑰: DXJURUJRANOYMX-UHFFFAOYSA-L

说明

一般說明

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.

應用

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.

安全信息

• 象形圖: GHS05,GHS07
• 訊號詞: Danger
• 危險聲明: H290 - H302 - H314 - H335
• 防範說明: P234 - P261 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• 危險分類: Acute Tox. 4 Oral - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3
• 標靶器官: Respiratory system
• 儲存類別代碼: 8A - Combustible, corrosive hazardous materials
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: 332.1 °F - Pensky-Martens closed cup
• 閃點（°C）: > 166.7 °C - Pensky-Martens closed cup