Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
Synonym(s):Trimethylsilyl (fluorosulfonyl)difluoroacetate
- CAS NO.：120801-75-4
- Empirical Formula: C5H9F3O4SSi
- Molecular Weight: 250.27
- MDL number: MFCD02093343
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:25:42
What is Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate?
Physical properties
73–74 °C at 35mm Hg.
The Uses of Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
Fluoroalkylation agent. Reactant for Preparation of difluorocyclopropenes and Preparation of difluorocarbene reagents.
The Uses of Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
Trimethylsilyl Fluorosulfonyldifluoroacetate is a reagent used in Synthesis of gem-Difluorocyclopropanes, Synthesis of gem-Difluorocyclopropenes, etc.
The Uses of Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
- Fluoroalkylation agent
Reactant for:
- Preparation of difluorocyclopropenes
- Preparation of difluorocarbene reagents
Preparation
Prepared by treatment of FO2SCF2CO2H with (CH3)3SiCl.
Properties of Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
| Boiling point: | 156 °C (lit.) |
| Density | 1.27 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 80 °F |
| solubility | Soluble in ether, toluene, and diglyme. |
| form | clear liquid |
| Specific Gravity | 1.28 |
| color | Colorless to Almost colorless |
| Water Solubility | Reacts with water. |
| Hydrolytic Sensitivity | 7: reacts slowly with moisture/water |
| CAS DataBase Reference | 120801-75-4(CAS DataBase Reference) |
| EPA Substance Registry System | Acetic acid, 2,2-difluoro-2-(fluorosulfonyl)-, trimethylsilyl ester (120801-75-4) |
Safety information for Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05 |
| GHS Hazard Statements |
H226:Flammable liquids H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Trimethylsilyl 2-(fluorosulfonyl)difluoroacetate
| InChIKey | XHVSCKNABCCCAC-UHFFFAOYSA-N |
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