Trimethylsilyl trifluoromethanesulfonate

Trimethylsilyl trifluoromethanesulfonate (TMSOTf, CAS: 27607-77-8) is a powerful reagent widely used in organic synthesis, especially in the fields of fine chemicals and pharmaceutical intermediates. It is commonly employed as a silylating agent to protect functional groups such as hydroxyl and carboxyl groups. Additionally, it serves as a Lewis acid catalyst to promote reactions such as the Mukaiyama aldol reaction, glycosylation, and cyclization processes. Due to its high reactivity and extreme sensitivity to moisture, it must be handled under anhydrous and inert conditions.