The copper‐mediated trifluoromethylation of terminal alkynes with S ‐(trifluoromethyl)diarylsulfonium salt has been carefully investigated. The reactions proceeded smoothly to afford trifluoromethylated acetylenes in moderate to good yields. This approach is a convenient method to synthesize a variety of functional trifluoromethylated acetylenes.
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Wang et al. (2013) studied this question.
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