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Triflyl, more formally known as trifluoromethanesulfonyl, is a functional group with the formula F3CSO2–. The triflyl group is often represented by –Tf.

The related triflate group (trifluoromethanesulfonate) has the formula F3CSO2O–, and is represented by –OTf.

See also[edit]


  1. ^ Zeller, Wayne E.; Schwörer, Ralf (2009). "N-Phenyltrifluoromethanesulfonimide". e-EROS Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289X.rp142.pub2.
  2. ^ Baraznenok, Ivan L.; Nenajdenko, Valentine G.; Balenkova, Elizabeth S. (May 2000). "Chemical Transformations Induced by Triflic Anhydride". Tetrahedron. 56 (20): 3077–3119. doi:10.1016/S0040-4020(00)00093-4.