Triethylsilyl trifluoromethanesulfonate , 98% , 79271-56-0

Synonym(s):
TES triflate;Trifluoromethanesulfonic acid triethylsilylester

CAS NO.：79271-56-0

Empirical Formula: C7H15F3O3SSi

Molecular Weight: 264.34

MDL number: MFCD00000407

EINECS: 279-124-4

PRODUCT 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

Description and 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.

Safety

• 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