Benzoic acid (trifluoromethanesulfonic acid)anhydride Chemical Properties

Boiling point:

94°C/2.2mmHg(lit.)

Density 

1.542±0.06 g/cm3(Predicted)

Flash point:

114°C

storage temp. 

<0°C

form 

clear liquid

color 

Colorless to Light orange to Yellow

CAS DataBase Reference

36967-85-8

Safety Information

HS Code 

2933998090

Benzoic acid (trifluoromethanesulfonic acid)anhydride Usage And Synthesis

Uses

Benzoic acid (trifluoromethanesulfonic acid)anhydride is useful as a reagent for protecting hindered hydroxyl groups as their benzoyl esters; a reagent for effecting bridgehead carboxaldehyde ring expansion; a highly reactive benzoylating reagent for Friedel-Crafts acylation.

Preparation

Benzoic acid (trifluoromethanesulfonic acid)anhydride is synthesized from Benzoyl Chloride and Trifluoromethanesulfonic Acid. Generation in situ has been achieved with benzoyl chloride and silver triflate, benzoic anyhdride and  triflic acid, and reaction of S-methyl thiobenzoate with methyl triflate.

storage

Very moisture sensitive and corrosive. Darkens on exposure to air, but can be stored at rt under dry nitrogen for several months without appreciable decomposition.

Benzoic acid (trifluoromethanesulfonic acid)anhydride(36967-85-8)Related Product Information

• BUTYL TRIFLATE
• trifluoromethanesulfonanilide
• 1-(Trifluoroacetyl)imidazole
• Potassium trifluoromethanesulfonate
• Ethyl trifluoromethanesulfonate