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Triethylsilyl trifluoromethanesulfonate

Triethylsilyl trifluoromethanesulfonate
Triethylsilyl trifluoromethanesulfonate structure
CAS No.
79271-56-0
Chemical Name:
Triethylsilyl trifluoromethanesulfonate
Synonyms
TES-OTF;TES TRIFLATE;TRIETHYLSILYL TRIFLATE;Triethyl(trifluoromesyloxy)silane;Triethylsilyl trifluoromethanesulfote;TRIETHYLSILYL TRIFLUOROMETHANESULFONATE;TRIETHYLSILYL TRIFLUOROMETHANESULPHONATE;Triethylsilyltrifluoromethanesulphonate99%;Triethylsilyltrifluoromethanesulfonate,99%;Triethyl(trifluoromethylsulfonyloxy)silane
CBNumber:
CB6298346
Molecular Formula:
C7H15F3O3SSi
Formula Weight:
264.34
MOL File:
79271-56-0.mol

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.
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
Sensitive 
Moisture Sensitive
BRN 
3590541
CAS DataBase Reference
79271-56-0(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H227-H318-H314
Precautionary statements  P303+P361+P353-P402-P280-P305+P351+P338-P310
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

Triethylsilyl trifluoromethanesulfonate price More Price(8)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 279471 Triethylsilyl trifluoromethanesulfonate 99% 79271-56-0 10g $107 2021-03-22 Buy
Sigma-Aldrich 279471 Triethylsilyl trifluoromethanesulfonate 99% 79271-56-0 50g $274 2021-03-22 Buy
TCI Chemical T1689 Triethylsilyl Trifluoromethanesulfonate >98.0%(T) 79271-56-0 5g $39 2021-03-22 Buy
TCI Chemical T1689 Triethylsilyl Trifluoromethanesulfonate >98.0%(T) 79271-56-0 25g $112 2021-03-22 Buy
Alfa Aesar L14477 Triethylsilyl trifluoromethanesulfonate 98% 79271-56-0 25g $122 2020-06-24 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 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.

Triethylsilyl trifluoromethanesulfonate Preparation Products And Raw materials

Raw materials

Preparation Products


Triethylsilyl trifluoromethanesulfonate Suppliers

Global( 180)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21032 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8882 55
Fluoropharm Co., Ltd.
+8613336034509
+86 0571-85586753 sales@fluoropharm.com China 982 60
ATK CHEMICAL COMPANY LIMITED
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 ivan@atkchemical.com CHINA 26734 60
Zjartschem
+86-571-8723 8903 jocelynpan@zjarts.com
+86-571-87063838 jocelynpan@zjarts.com CHINA 997 58
Chongqing Chemdad Co.,Ltd
+86-19923101450
sales@chemdad.com CHINA 4000 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63726 58
CONIER CHEM AND PHARMA LIMITED
86-18523575427
sales@conier.com CHINA 47496 58

View Lastest Price from Triethylsilyl trifluoromethanesulfonate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
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
2021-07-10 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
2019-12-25 Triethylsilyl trifluoromethanesulfonate
79271-56-0
US $0.10 / KG 1KG 95%-99% 1kg; 50kg; 500kg Career Henan Chemical Co

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