246530

Ethyl trifluoromethanesulfonate

99%

• Synonym(s): Ethyl 1,1,1-trifluoromethanesulfonate, Ethyl triflate, Ethyl trifluoromethanesulphonate, Trifluoromethanesulfonic acid ethyl ester
• Linear Formula: CF₃SO₂OC₂H₅
• CAS Number: 425-75-2
• Molecular Weight: 178.13
• Beilstein/REAXYS Number: 1770746
• EC Number: 207-037-3
• MDL number: MFCD00000410
• UNSPSC Code: 12352108
• PubChem Substance ID: 24854812
• NACRES: NA.22

Properties

• assay: 99%
• form: liquid
• refractive index: n20/D 1.336 (lit.)
• bp: 115 °C (lit.)
• density: 1.374 g/mL at 25 °C (lit.)
• SMILES string: CCOS(=O)(=O)C(F)(F)F
• InChI: 1S/C3H5F3O3S/c1-2-9-10(7,8)3(4,5)6/h2H2,1H3
• InChI key: UVECLJDRPFNRRQ-UHFFFAOYSA-N

Description

General description

Ethyl trifluoromethanesulfonate (EtOTf) is a useful reagent used in organic synthesis that can be used to introduce an ethyl group into a variety of compounds. EtOTf is also a good leaving group, which makes it useful in a variety of other reactions, such as nucleophilic substitutions and eliminations.

Application

Ethyl trifluoromethanesulfonate can be used as a precursor to prepare ionic liquids with triflate anions. It is reacted with a selected amine in the presence of a base, resulting in the formation of the desired ionic liquid with a triflate anion.

Safety Information

• pictograms: GHS02,GHS05
• signalword: Danger
• hcodes: H226,H314
• pcodes: P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Flam. Liq. 3 - Skin Corr. 1B
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 95.0 °F - closed cup
• flash_point_c: 35 °C - closed cup
• ppe: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter