ChemicalBook >> CAS DataBase List >>Triethylsilyl trifluoromethanesulfonate
Triethylsilyl trifluoromethanesulfonate
- CAS No.
- 79271-56-0
- Chemical Name:
- Triethylsilyl trifluoromethanesulfonate
- Synonyms
- TRIETHYLSILYL TRIFLATE;TES-OTF;DKFELEX0305;TES TRIFLATE;Triethyl(trifluoromesyloxy)silane;Triethylsilyl trifluoromethanesulfote;TRIETHYLSILYL TRIFLUOROMETHANESULFONATE;TRIETHYLSILYL TRIFLUOROMETHANESULPHONATE;Triethylsilyltrifluoromethanesulphonate99%;Triethylsilyltrifluoromethanesulfonate,99%
- CBNumber:
- CB6298346
- Molecular Formula:
- C7H15F3O3SSi
- Molecular Weight:
- 264.34
- MDL Number:
- MFCD00000407
- MOL File:
- 79271-56-0.mol
Last updated:2023-05-15 10:43:33
| Boiling point | 85-86 °C/12 mmHg (lit.) |
|---|---|
| Density | 1.169 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | 162 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Triethylsilyl Trifluoromethanesulfonate is readily sol hydrocarbons, dialkyl ethers, halogenated solvents. CH2Cl2 is employed most commonly. Reactions in 1,2-dichloroethane proceed faster than those in CCl4 or Et2O. Protic solvents and THF react with trialkylsilyl triflates and are therefore not suitable. |
| form | Fuming Liquid |
| Specific Gravity | 1.169 |
| color | Clear colorless to light brown |
| Water Solubility | Miscible with dichloromethane, hydrocarbons, dialkyl ethers and halogenated solvents. Immiscible with water. |
| Sensitive | Moisture Sensitive |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| BRN | 3590541 |
| Stability | Moisture Sensitive and Hygroscopic, Moisture Sensitive And Hygroscopic |
| CAS DataBase Reference | 79271-56-0(CAS DataBase Reference) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS05 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H314 | |||||||||
| Precautionary statements | P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363-P405 | |||||||||
| Hazard Codes | C,F | |||||||||
| Risk Statements | 34-14 | |||||||||
| Safety Statements | 26-36/37/39-45-27 | |||||||||
| RIDADR | UN 3265 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 10-21 | |||||||||
| Hazard Note | Corrosive/Flammable | |||||||||
| TSCA | No | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29319090 | |||||||||
| NFPA 704 |
|
Triethylsilyl trifluoromethanesulfonate price More Price(31)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 279471 | Triethylsilyl trifluoromethanesulfonate 99% | 79271-56-0 | 10g | $129 | 2024-03-01 | Buy |
| Sigma-Aldrich | 279471 | Triethylsilyl trifluoromethanesulfonate 99% | 79271-56-0 | 50g | $147 | 2024-03-01 | Buy |
| TCI Chemical | T1689 | Triethylsilyl Trifluoromethanesulfonate >98.0%(T) | 79271-56-0 | 5g | $45 | 2024-03-01 | Buy |
| TCI Chemical | T1689 | Triethylsilyl Trifluoromethanesulfonate >98.0%(T) | 79271-56-0 | 25g | $128 | 2024-03-01 | Buy |
| Alfa Aesar | L14477 | Triethylsilyl trifluoromethanesulfonate 98% | 79271-56-0 | 5g | $45.65 | 2024-03-01 | Buy |
Triethylsilyl trifluoromethanesulfonate Chemical Properties,Uses,Production
Chemical Properties
clear colorless to light brown fuming liquid
Physical properties
85–86 °C/12 mmHg; d 1.169 g cm?3.
Uses
Triethylsilyl trifluoromethanesulfonate acts as a silylating agent. It is also useful as a Lewis acid catalyst. Further, it reacts with 1-diazo-3,3-dimethyl-butan-2-one to prepare 1-diazo-3,3-dimethyl-1-(triethylsilyl)-2-butanone.
Uses
Triethylsilyl Trifluoromethanesulfonate can be used as potent silylating agent and as Lewis acid catalyst. Triethylsilyl ethers are generally more stable towards hydrolysis than are trimethylsilyl ethers, and consequently the Et3Si moiety has gained increasing use as a protecting group for alcohols. However, since it is often difficult to silylate sterically hindered hydroxyl groups using Et3SiCl, triethylsilyl perchlorate and triethylsilyl triflate (Et3SiOTf) were introduced to overcome this problem. Jefford has reported that condensation reactions of 2-trimethylsiloxyfuran with aldehydes can be catalyzed by Et3SiOTf to give mainly the threo addition product (eq 8).
Preparation
Triethylsilyl Trifluoromethanesulfonate can be prepared by reacting chlorotriethylsilane with trifluoromethanesulfonic acid followed by distillation.
Synthesis of Triethylsilyl trifluoromethanesulfonate from Chlorotriethylsilane and Trifluoromethanesulfonic acid
Triethylsilyl trifluoromethanesulfonate Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 268)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 18775 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21634 | 55 |
| Hangzhou FandaChem Co.,Ltd. | +8615858145714 | FandaChem@Gmail.com | China | 9206 | 55 |
| Fluoropharm Co., Ltd. | +86-0571-85586753; +8613336034509 | sales@fluoropharm.com | China | 1376 | 60 |
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| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10310 | 58 |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39894 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49374 | 58 |
View Lastest Price from Triethylsilyl trifluoromethanesulfonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2023-03-10 | Triethylsilyl trifluoromethanesulfonate
79271-56-0
|
US $0.00 / KG | 1KG | 99.0% | 1000KG | LY Global chemicals co.,ltd . | |
 |
2022-10-01 | Triethylsilyl trifluoromethanesulfonate
79271-56-0
|
US $0.00-0.00 / KG | 1KG | 98% | 1ton | Henan Aochuang Chemical Co.,Ltd. | |
 |
2021-07-13 | Triethylsilyl trifluoromethanesulfonate
79271-56-0
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd |
-
- Triethylsilyl trifluoromethanesulfonate
79271-56-0
- US $0.00 / KG
- 99.0%
- LY Global chemicals co.,ltd .
-
- Triethylsilyl trifluoromethanesulfonate
79271-56-0
- US $0.00-0.00 / KG
- 98%
- Henan Aochuang Chemical Co.,Ltd.
-
- Triethylsilyl trifluoromethanesulfonate
79271-56-0
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
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1of4
TES TRIFLATE
TRIFLUOROMETHANESULFONIC ACID TRIETHYLSILYL ESTER
TRIETHYLSILYL TRIFLUOROMETHANESULFONATE
TRIETHYLSILYL TRIFLUOROMETHANESULPHONATE
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TRIETHYLSILYL TRIFLUOROMETHANESULFONATE 99%
TriethylsilyltrifluoromethanesulphonateTESTriflate
Triethylsilyl trifluoromethanesulphonate 99%
Triethylsilyltrifluoromethanesulphonate99%
Triethylsilyl trifluoromethanesulfonate,TES triflate, Trifluoromethanesulfonic acid triethylsilylester
Triethylsilyl Triflate
Trifluoromethanesulfonic Acid Triethylsilyl Ester
Triethylsilyltrifluoromethanesulfonate,99%
TES triflate, Trifluoromethanesulfonic acid triethylsilylester
Triethyl(trifluoromesyloxy)silane
Triethyl(trifluoromethylsulfonyloxy)silane
Triethylsilyl trifluoromethanesulfote
Methanesulfonic acid,1,1,1-trifluoro-, triethylsilyl ester
TRIETHYLSILYL TRIFLUOROMETHANESULFONATE, 99%TRIETHYLSILYL TRIFLUOROMETHANESULFONATE, 99%TRIETHYLSILYL TRIFLUOROMETHANESULFONATE, 99%
TIANFUCHEM--79271-56-0--Triethylsilyl trifluoromethanesulfonate
TRIETHYLSILYL TRIFLATE
TES-OTF
TRIETHYLSILYL TRIFLUOROMETHANESULFONATE
TES triflate Triethylsilyl Triflate
DKFELEX0305
79271-56-0
CF3SO3SiCH2CH33
CF3SO3SiC2H53
Synthetic Reagents
Silicon-Based
Protection and Derivatization
Protecting and Derivatizing Reagents
Protection & Derivatization Reagents (for Synthesis)
Silicon Compounds (for Synthesis)
Si-O Compounds
Silyl Esters
Si (Classes of Silicon Compounds)
metal triflate compounds
Protection & Derivatization Reagents (for Synthesis)
Si (Classes of Silicon Compounds)
Silicon Compounds (for Synthesis)
Silyl Esters
Si-O Compounds
Synthetic Organic Chemistry