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HomeProduct name listAluminum trifluoromethanesulfonate

Aluminum trifluoromethanesulfonate

Synonym(s):Aluminum triflate;Aluminum tris(trifluoromethanesulfonate);Tris(trifluoromethanesulfonato)aluminum

Aluminum trifluoromethanesulfonate Structural

What is Aluminum trifluoromethanesulfonate?

Chemical properties

White powder

The Uses of Aluminum trifluoromethanesulfonate

Lewis acid used as a catalyst for Friedel–Crafts, ketalization, nucleophilic substitution, hydroalkoxylation, methoxycarbonyla- tion, rearrangement, and epoxide ring-opening reactions.

The Uses of Aluminum trifluoromethanesulfonate

Aluminum trifluoromethanesulfonate is used in pharmaceutical intermediates.

Preparation

Can be prepared from aluminum trichloride and tribromide by heating with triflic acid in anhydrous conditions. Preparations from triethylaluminum, aluminum carbide, and aluminum isopropoxide have also been described.

Reactions

Friedel-Crafts Reactions.
Aluminum trifluoromethanesulfonate has been used for the Friedel-Crafts alkylation reaction of toluene with isopropyl and tert-butyl chlorides (eq 1), and for theacylationofbenzeneandtoluenewithacetylandbenzoylchlo- rides in low to moderate yields. Intramolecular Friedel-Crafts acylation of an aromatic compound with Meldrum’s acid has also been reported using catalytic amounts of Al(OTf) 3 . Acylation of 2-methoxynaphthalene with acetic anhydride has been reported using Al(OTf) 3 and lithium perchlorate as an additive to afford the corresponding 6-acetylated adduct in 83% yield. Effective acylation of arenes with carboxylic acids has also been disclosed using polystyrene-supported Al(OTf)3.
Aluminum trifluoromethanesulfonate Friedel-Crafts Reactions

Properties of Aluminum trifluoromethanesulfonate

Melting point: 300 °C(lit.)
storage temp.  Inert atmosphere,Room Temperature
solubility  soluble in ether, acetone, acetonitrile, and diglyme; poorly soluble in nitromethane; sparingly soluble in SO2 and SO2 ClF.
form  Powder
color  White
Water Solubility  Insoluble in water.
Sensitive  Hygroscopic
Hydrolytic Sensitivity 6: forms irreversible hydrate
Stability: hygroscopic
CAS DataBase Reference 74974-61-1(CAS DataBase Reference)

Safety information for Aluminum trifluoromethanesulfonate

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
GHS Hazard Statements H314:Skin corrosion/irritation
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P363:Wash contaminated clothing before reuse.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for Aluminum trifluoromethanesulfonate

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