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From inorganic fluoride to organic fluoride: Just as the old Chinese legend that a carp succeed in leaping over the divine gate will become a Chinese dragon. In the presence of 18‐c‐6, KF succeed in reacting with thiophosgene, leaping over obstacles of unstable SCF3 anion intermediate, and is being transformed into trifluoromethylthiolation reagent TFBT, which has been used in trifluoromethylthiolation...
S‐(Trifluoromethyl)benzothioate (TFBT) has been developed as an inexpensive, bench‐stable, and user‐friendly trifluoromethylthiolation reagent, which can be easily synthesized by using KF as the only fluorine source. By using TFBT, trifluoromethylthiolates with various counterions can be readily obtained. The synthetic application of TFBT was demonstrated by trifluoromethylthiolation‐halogenation...
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