Toluene → N-methyl-N-propylpyrrolidinium ethylsulfamate

Participants

Reaction Steps

200 mmol of 1-methylpyrrolidone (Aldrich) in solution in 100 ml of toluene were quaternized with 100 mmol of diethyl sulfite (Aldrich), added slowly at 0° C., with stirring for 24 hours at ambient temperature. After evaporation of the solvent and drying, N-methyl-N-propylpyrrolidinium ethylsulfamate was obtained. 50 mmol of ethylsulfamate were solubilized in 50 ml of acetonitrile, and were reacted with 50 mmol of KBFFST. After stirring for 2 hours, and then filtration, evaporation of the solvent and drying, the N-propane-N-methylpyrrolidinium salt of 3,5-difluorosulfonyl-1,2,4-triazole (PYR13BFST) corresponding to the following formula was obtained:

Provenance & Evidence