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CAS RN: 36967-85-8 | Product Number: B3567

Benzoyl Trifluoromethanesulfonate

Purity: >98.0%(T)
  • Trifluoromethanesulfonic Acid Benzoyl Ester
  • Benzoyl Triflate
10   9  

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Product Number B3567
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__8H__5F__3O__4S = 254.18  
Physical State (20 deg.C) Liquid
Storage Temperature <0°C
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive,Heat Sensitive
CAS RN 36967-85-8
Reaxys Registry Number 2217043
PubChem Substance ID 125307799
Appearance Colorless to Light orange to Yellow clear liquid
Purity(Neutralization titration) min. 98.0 %
Properties (reference)
Boiling Point 94 °C/2.2 mmHg
Flash point 114 °C
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws:
Transport Information:
H.S.code* 2916.39-000
*This code is applied to the products when TCI exports from Japan and not for import in your country.
A Mild Reagent for Benzoylation

Typical Procedure: 1-Adamantanol (99 mg, 0.65 mmol) is added to a dry round-bottom flask, which has been equipped with a stir bar and rubber septum. After purging with dry nitrogen, dry CH2Cl2 is added to make a 0.1 M solution. Pyridine (245 mg, 3.1 mmol, 4.8 eq.) is added to the reaction vessel, and the solution is cooled to -78 °C. BzOTf (495 mg, 1.95 mmol, 3.0 eq.) is then added via syringe. After proceeding for 30 min at -78 °C, the solution is allowed to warm to ambience, and after 1 h at room temperature, is quenched with MeOH, followed by filtration through Florisil® with CH2Cl2 prior to removal of the solvent at reduced pressure. Purification by preparative TLC gives the product (148 mg, 0.58 mmol, 89%). Recrystallization from methanol gives white needles.


PubMed Literature


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