ChemicalBook >> CAS DataBase List >>Triethylsilyl trifluoromethanesulfonate

Triethylsilyl trifluoromethanesulfonate

CAS No.
79271-56-0
Chemical Name:
Triethylsilyl trifluoromethanesulfonate
Synonyms
TRIETHYLSILYL TRIFLATE;TES-OTF;TES TRIFLATE;Triethyl(trifluoromesyloxy)silane;Triethylsilyl trifluoromethanesulfote;TRIETHYLSILYL TRIFLUOROMETHANESULFONATE;TRIETHYLSILYL TRIFLUOROMETHANESULPHONATE;Triethylsilyltrifluoromethanesulphonate99%;Triethylsilyltrifluoromethanesulfonate,99%;Triethyl(trifluoromethylsulfonyloxy)silane
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

Triethylsilyl trifluoromethanesulfonate Properties

Boiling point 85-86 °C/12 mmHg (lit.)
Density 1.169 g/mL at 25 °C (lit.)
refractive index n20/D 1.389(lit.)
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)  GHS hazard pictograms
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
10-21
Hazard Note  Corrosive/Flammable
TSCA  No
HazardClass  8
PackingGroup  II
HS Code  29319090
NFPA 704
2
3 2
W

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
Product number Packaging Price Buy
279471 10g $129 Buy
279471 50g $147 Buy
T1689 5g $45 Buy
T1689 25g $128 Buy
L14477 5g $45.65 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.

994-30-9
1493-13-6
79271-56-0
Synthesis of Triethylsilyl trifluoromethanesulfonate from Chlorotriethylsilane and Trifluoromethanesulfonic acid

Triethylsilyl trifluoromethanesulfonate Preparation Products And Raw materials

Global( 244)Suppliers
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Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886 info@dakenam.com China 14936 58
Henan Tianfu Chemical Co.,Ltd.
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008657128800458; +8615858145714 fandachem@gmail.com China 9354 55
Fluoropharm Co., Ltd.
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ATK CHEMICAL COMPANY LIMITED
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Shenzhen Nexconn Pharmatechs Ltd
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Chongqing Chemdad Co., Ltd
+86-023-61398051 +8613650506873 sales@chemdad.com China 39916 58
Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63711 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427 sales@conier.com China 47465 58

View Lastest Price from Triethylsilyl trifluoromethanesulfonate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Triethylsilyl trifluoromethanesulfonate pictures 2023-03-10 Triethylsilyl trifluoromethanesulfonate
79271-56-0
US $0.00 / KG 1KG 99.0% 1000KG LY Global chemicals co.,ltd .
Triethylsilyl trifluoromethanesulfonate pictures 2022-10-01 Triethylsilyl trifluoromethanesulfonate
79271-56-0
US $0.00-0.00 / KG 1KG 98% 1ton Henan Aochuang Chemical Co.,Ltd.
Triethylsilyl trifluoromethanesulfonate pictures 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
TES TRIFLATE TRIFLUOROMETHANESULFONIC ACID TRIETHYLSILYL ESTER TRIETHYLSILYL TRIFLUOROMETHANESULFONATE TRIETHYLSILYL TRIFLUOROMETHANESULPHONATE 1,1,1-TRIETHYLSILYL TRIFLUOROMETHANESULFONATE 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 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