Abstract
AbstractA one‐step synthesis of Billard–Langlois reagents and their derivatives, trifluoromethanesulfenamides, is reported. A series of primary and secondly arylamines were directly N−H trifluoromethylthiolated by a trifluoromethanesulfonyl hypervalent iodonium ylide under mild, copper‐catalyzed reaction conditions in high yields. Heteroaromatic amines were also successfully trifluoromethylthiolated under the same reaction conditions. An arylamine with an NH‐pyrrole moiety was chemoselectively N‐trifluoromethylthiolated.
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