Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246), Univ Lyon, Université Lyon 1, CNRS, CPE-Lyon, INSA, 43 Bd du 11 Novembre 1918, 69622, Villeurbanne, France.
ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364, Lyon, France.
Angew Chem Int Ed Engl. 2022 Jul 4;61(27):e202204623. doi: 10.1002/anie.202204623. Epub 2022 May 13.
The activation of SF , a potent greenhouse gas, under metal-free and visible light conditions is reported. Herein, mechanistic investigations including EPR spectroscopy, NMR studies and cyclic voltammetry allowed the rational design of a new fluorinating reagent which was synthesized from the 2-electron activation of SF with commercially available TDAE. This new SF -based reagent was efficiently employed for the deoxyfluorination of CO and the fluorinative desulfurization of CS allowing the formation of useful fluorinated amines. Moreover, for the first time we demonstrated that our SF -based reagent could afford the mild generation of Cl-SF gas. This finding was exploited for the chloro-pentafluorosulfanylation of alkynes and alkenes.
据报道，在无金属和可见光条件下 SF（一种强效温室气体）被激活。在此，包括 EPR 光谱、NMR 研究和循环伏安法在内的机理研究允许合理设计一种新的氟化试剂，该试剂由 SF 与市售 TDAE 的 2 电子活化合成。这种新型基于 SF 的试剂可有效地用于 CO 的脱氧氟化和 CS 的氟化脱硫，从而形成有用的氟化胺。此外，我们首次证明我们的基于 SF 的试剂可以温和地生成 Cl-SF 气体。这一发现被用于炔烃和烯烃的氯五氟硫基化。
