| Identification | More | [Name]
Methyl trifluoromethanesulfonate | [CAS]
333-27-7 | [Synonyms]
METHYL TRIFLATE
METHYL TRIFLUOROMETHANESULFONATE
METHYL TRIFLUOROMETHANESULPHONATE
TRIFLUOROMETHANESULFONIC ACID METHYL ESTER
Methanesulfonicacid,trifluoro-,methylester
methyltrifluoromethanesulfinate
trifluoromethane-sulfinicacid,methylester
trifluoro-methanesulfonicacimethylester
METHYL TRIFLUOROMETHANESULFONATE, >=98%
Methyl trifluoromethanesulphonate 98%
Methyltrifluoromethanesulphonate98%
Methyl trifluoromethanesulfonate ,96% | [EINECS(EC#)]
206-371-7 | [Molecular Formula]
C2H3F3O3S | [MDL Number]
MFCD00000409 | [Molecular Weight]
164.1 | [MOL File]
333-27-7.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colourless to yellow liquid | [Boiling point ]
94-99 °C(lit.)
| [density ]
1.45 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.326(lit.)
| [Fp ]
101 °F
| [storage temp. ]
0-6°C | [solubility ]
Chloroform (Sparingly), Ethyl Acetate (Slightly) | [form ]
Liquid | [color ]
Clear colorless to yellow | [Specific Gravity]
1.450 | [Sensitive ]
Air Sensitive | [Detection Methods]
GC,NMR,MS | [BRN ]
774772 | [Stability:]
Hygroscopic, Moisture Sensitive, Volatile | [InChI]
InChI=1S/C2H3F3O3S/c1-8-9(6,7)2(3,4)5/h1H3 | [InChIKey]
OIRDBPQYVWXNSJ-UHFFFAOYSA-N | [SMILES]
C(F)(F)(F)S(OC)(=O)=O | [CAS DataBase Reference]
333-27-7(CAS DataBase Reference) | [Storage Precautions]
Air sensitive;Moisture sensitive | [EPA Substance Registry System]
333-27-7(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,T | [Risk Statements ]
R10:Flammable.
R34:Causes burns.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S16:Keep away from sources of ignition-No smoking . | [RIDADR ]
UN 2920 8/PG 2
| [WGK Germany ]
3
| [F ]
10 | [Hazard Note ]
Highly Toxic/Corrosive | [TSCA ]
T | [HazardClass ]
3.2 | [PackingGroup ]
III | [HS Code ]
29049020 |
| Hazard Information | Back Directory | [General Description]
Methyl trifluoromethane sulfonate is a brown liquid. Insoluble in water. (NTP, 1992) This material is a very reactive methylating agent, also known as methyl triflate. | [Reactivity Profile]
METHYL TRIFLUOROMETHANE SULFONATE(333-27-7) is sensitive to heat. . Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. | [Air & Water Reactions]
Highly flammable. Insoluble in water. | [Health Hazard]
ACUTE/CHRONIC HAZARDS: When heated to decomposition this compound emits toxic fumes. | [Fire Hazard]
This chemical is combustible. | [Chemical Properties]
clear colourless to yellow liquid | [Uses]
suzuki reaction | [Application]
Methyl trifluoromethanesulfonate, a methylating agent, is commonly used for the pre-methylation of polysaccharides under mild basic conditions.
In the determination of polysulfides, zerovalent sulfur in sulfide-rich water wells, and polysulfide species in electrolyte of a lithium–sulfur battery using chromatography-based techniques.
In reactions with potassium enolates.
For the conversion of amines to methyl ammonium triflates.
Additionally, methyl trifluoromethanesulfonate has been utilized in the production of 2-Benzyloxy-1-methylpyridinium trifluoromethanesulfonate. | [Toxicology]
Methyl trifluoromethanesulfonate is extremely hazardous. All possible precautions should be taken to avoid inhalation or absorption through the skin. This material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract, eyes, and skin. Inhalation may be fatal as a result of spasm, inflammation, and edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Use in a fume hood. Although there has yet to be a reported human fatality, several cases were reported for methyl fluorosulfonate (LC50 (rat, 1 h) = 5 ppm), and methyl triflate is expected to have similar toxicity based on available evidence.
| [Synthesis]
Methyl trifluoromethanesulfonate is commercially available, however it may also be prepared in the laboratory by treating dimethyl sulfate with triflic acid.
CF3SO2OH + (CH3O)2SO2 → CF3SO2OCH3 + CH3OSO2OH | [Purification Methods]
Methyl trifluoromethanesulfonate (methyl triflate) [333-27-7] M 164.1, b 97 -97.5o/736mm, 9 9o/~760mm, 100-102o/~760mm, d 4 1.496, n D 1.3238. It is a strong methylating agent but is corrosive and POISONOUS. Fractionate it carefully and collecting the middle fraction (use an efficient fume cupboard) and keep away from moisture. It is a POWERFUL ALKYLATING AGENT and a strong IRRITANT. [IR: Gramstad & Haszeldine J Chem Soc 173 1956 , J Chem Soc 4069 1957 .] Trifluoromethanesulfonic acid (triflic acid) [1493-13-6] M 151.1, boils higher (b 162o/atm), has a pKa of 3.10, and is TOXIC and hygroscopic. [Hansen J Org Chem 30 4322 1965, Kurz & El-Nasr J Am Chem Soc 104 5823 1982, Beilstein 3 IV 34.] |
|
|