Abstract
[421-83-0] CClF3O2S (MW 168.53) InChI = 1S/CClF3O2S/c2-8(6,7)1(3,4)5 InChIKey = GRGCWBWNLSTIEN-UHFFFAOYSA-N (trifluoromethylsulfonation agent;1 chlorinating agent;2 metal-catalyzed chlorotrifluoromethylation of alkenes3) Alternate Name: triflyl chloride. Physical Data: bp 29–32 °C, d 1.583 g cm−3. Solubility: sol CH2Cl2, THF, dioxane. Form Supplied in: colorless liquid, 99 +%. Analysis of Reagent Purity: IR: 1424, 1306, 1237, 1115, 771, 611, 565, 532, 404 cm−1.4 Preparative Methods: dried Zinc Trifluoromethanesulfonate is heated with PCl5·2ZnCl at 260 °C. Fractional distillation of the volatile products gives TfCl (94% yield).5 Handling, Storage, and Precautions: moisture sensitive; store under N2 in the cold. This toxic reagent is corrosive and is a lachrymator. It should only be handled in a fume hood.
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