位置:首页 > 品牌 > Sigma-Aldrich >

Trifluoromethanesulfonic Anhydride

三氟甲磺酸酐

品牌
Sigma-Aldrich
CAS
358-23-6
货号
91737
规格纯度
purum, ≥98.0% (T)
参考价格
496.44 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

应用

Trifluoromethanesulfonic anhydride can be used in the preparation of azido sugars such as 6-azido fucose. It can also be used as a promoter for the Friedel-Crafts acylation of aromatic compounds with carboxylic acids in the absence of catalyst.
Tf2O in combination with:

  • Diphenyl sulfoxide, forms an efficient promoter system for the activation of thioglycosides for glycosylation reactions.
  • 2-chloropyridine, can be used for secondary amide activation.
  • Potassium iodide, can effectively mediate the deoxygenation of sulfoxides to form sulfides.
  • Hydrogen peroxide, for the selective oxidation of sulfanes to sulf­oxides in the presence of oxidatively sensitive functional groups.

Tf2O can react with:
  • Ketones in the presence of a base to form vinyl triflates.
  • Magnesium alkoxides to form corresponding symmetrical or unsymmetrical ethers.
  • Sodium azide for the in situ preparation of triflyl azide.

糖基化合成催化剂糖基化合成试剂
甘露三嗪甲基脲酸酯供体糖基化空间选择性合成试剂
异丙基羟基糖直接糖基化活化剂

包装

100 mL in glass bottle

其他说明

亲电子三氟甲磺酰基的来源。综述

基本信息

线性分子式(CF3SO2)2O
分子量282.14
Beilstein1813600
EC 号206-616-8
MDL编号MFCD00000408
PubChem化学物质编号329770073
NACRESNA.22

产品性质

质量水平200
蒸汽密度5.2 (vs air)
蒸汽压8 mmHg ( 20 ℃)
等级purum
测定≥98.0% (T)
形式liquid
折射率n20/D 1.321 (lit.)
bp81-83 ℃ (lit.)
密度1.677 g/mL at 25 ℃ (lit.)
SMILES stringFC(F)(F)S(=O)(=O)OS(=O)(=O)C(F)(F)F
InChI1S/C2F6O5S2/c3-1(4,5)14(9,10)13-15(11,12)2(6,7)8
InChI keyWJKHJLXJJJATHN-UHFFFAOYSA-N

安全信息

象形图GHS03GHS05GHS07
警示用语:Danger
危险声明H272 - H302 - H314 - H335
预防措施声明P210 - P220 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
危险分类Acute Tox. 4 Oral - Eye Dam. 1 - Ox. Liq. 2 - Skin Corr. 1B - STOT SE 3
靶器官Respiratory system
补充剂危害EUH014
储存分类代码5.1B - Oxidizing hazardous materials
WGKWGK 3
个人防护装备Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Sigma-Aldrich

推荐产品
| 首页 | 联系我们 | 会员服务 | 广告服务 | 友情链接 |
版权所有 CopyRight © 2008-2024 粤ICP备08119708号