Trimethylsilyl trifluoromethanesulfonate is a strong base useful for aziridine formation, alkylation, nitration, etc.
Preparation
Trimethylsilyl trifluoromethanesulfonate is prepared via reaction of t-Butylamine with the highly hygroscopic Vilsmeier salt obtained by reaction of N,N,N′,N′-tetramethylurea and Phosgene.