[107259-64-3] · C3H6AlF3O3S · Dimethylaluminum Trifluoromethanesulfonate · (MW 206.12)
Solubility: sol dichloromethane, hexane.
Preparative Methods: to a solution of Trimethylaluminum in dichloromethane at -78 °C was added 1 equiv of Trifluoromethanesulfonic Acid. The resulting mixture was stirred at -78 °C for 30 min and 0 °C for 30 min under N2.1
Handling, Storage, and Precautions: generated in situ and used directly.
Dimethylaluminum trifluoromethanesulfonate is used as a Lewis acid for alkenic cyclizations (eq 1),1 cationic rearrangements (eq 2),2 and epoxide-initiated cation-alkene cyclizations (eq 3).3
Takeshi Nakai & Katsuhiko Tomooka
Tokyo Institute of Technology, Japan