Maximum quantity allowed is 999
请选择数量
CAS RN: 878376-35-3 | 产品编码: P2398
Pyridine-2-sulfonyl Fluoride
×
![]()
×
技术规格
| Appearance | White to Almost white powder to lump |
| Purity(GC) | min. 98.0 % |
| Purity(Neutralization titration) | min. 98.0 % |
| NMR | confirm to structure |
物性（参考值）
| 熔点 | 26 °C |
| 闪点 | 96 °C |
GHS
| 象形图 |
|
| 信号词 | Danger |
| 危险性说明 | H314 : Causes severe skin burns and eye damage. H290 : May be corrosive to metals. |
| 防范说明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dusts or mists. P234 : Keep only in original container. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection. P390 : Absorb spillage to prevent material damage. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P363 : Wash contaminated clothing before reuse. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. P406 : Store in corrosive resistant container with a resistant inner liner. P405 : Store locked up. |
相关法规
运输信息
| UN编号 | UN3261 |
| 类别 | 8 |
| 包装类别 | II |
| HS编码* | 2933.39-000 |
应用
TCI Practical Example: Fluorination of an Alcohol Using PyFluor
-
Used Chemicals
-
Procedure
-
A solution of PyFluor (513 mg, 3.19 mmol) in dry toluene (3.6 mL) was added to a solution of 2,3-O-isopropylidene-D-ribonic γ-lactone (500 mg, 2.66 mmol) and DBU (0.79 mL, 5.31 mmol) in toluene (3.0 mL) at 0 °C, and the solution was stirred at room temperature for one day. The reaction mixture was quenched with water (10 mL) and the aqueous layer was extracted with ethyl acetate (3 x 5 mL). The combined organic layer was washed with sat. NH4Cl aq. and brine, dried over anhydrous sodium sulfate and filtered. The solvent was removed under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane = 0:100 - 15:85 on silica gel) to give the fluorinated compound 1 as a white solid (309 mg, 61% yield.).
-
Experimenter’s Comments
-
The reaction mixture was monitored by TLC (ethyl acetate:hexane = 1:2, Rf = 0.33).
It was easy to weigh PyFluor after melting PyFluor by heating with hot water bath because the melting point is 26 °C.
-
Analytical Data
-
Fluorinated Compound 1
1H NMR (270 MHz, DMSO-d6); δ 4.94-4.74 (m, 4H), 4.64 (ddd, J = 3.0, 10.8, 27.8 Hz, 1H), 1.37 (s, 3H), 1.33 (s, 3H).
-
Lead Reference
-
- PyFluor: A Low-Cost, Stable, and Selective Deoxyfluorination Reagent
应用
PyFluor: A Stable Deoxyfluorinating Agent
Experimental procedure: A vial is charged sequentially with substrate (1.0 mmol), toluene (1 mL, 1.0 mol/L), PyFluor (177 mg, 1.1 eq.), and DBU (300 µL, 2 eq.). PyFluor is dispensed as a liquid (m.p. 23 – 26 °C). The mixture is stirred at room temperature for 48 hours under ambient atmosphere. Occasionally, an exotherm is observed following addition of base, corresponding to sulfonate ester formation. Reaction progress is accompanied by formation of pale yellow to dark orange precipitates. Products are isolated by column chromatography.
References
- PyFluor: A Low-Cost, Stable, and Selective Deoxyfluorination Reagent
参考文献
文档
产品文档 (部分产品的分析图谱无法提供，敬请谅解。)
化学品安全说明书(SDS)
请选择语言。
如需更多帮助，请联系我 们。
技术规格
CoA及其他文档
请输入批号
批号输入有误。请输入中横线前的4-5个字母数字字符。
示例 CoA
可下载CoA示例。注：该示例不一定是最新批次的CoA。
目前没有该产品的 CoA 示例。
分析图谱
请输入批号
批号输入有误。请输入中横线前的4-5个字母数字字符。
很抱歉，您搜索的分析图谱无法提供。