N-Fluoropyridinium triflate is an organofluorine compound with the formula [C5H5NF]O3SCF3. It is a white solid with low solubility in polar organic solvents. The compound is used as an electrophilic fluorinating agent. It is a salt, consisting of the N-fluoropyridinium cation ([C5H5NF]+) and the triflate anion. Teruo Umemoto, Ahmad El-Awa "N-Fluoropyridinium Triflate" e-EROS Encyclopedia of Reagents for Organic Synthesis. Published Online: 22 APR 2013 Related reagents include Selectfluor, which is also an N-fluorinated salt.
N-Fluoropyridinium cations are not only electrophilic fluorinating agents (i.e., sources of "F+"), they are also one-electron oxidants.Kiselyov, A. S., "Chemistry of N-fluoropyridinium salts", Chemical Society Reviews 2005, vol. 34, page 1031.
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