Trifluoromethylthiolation of allylsilanes and silyl enol ethers with trifluoromethanesulfonyl hypervalent iodonium ylide under copper catalysis.

Electrophilic trifluoromethylthiolation of allylsilanes and silyl enol ethers with trifluoromethanesulfonyl hypervalent iodonium ylide has been conducted. In the presence of a catalytic amount of CuF2, the reaction proceeded in modest to high yields under mild conditions.