Synthesis of novel 2-trifluoromethyl-1-methylene-3-phenylindene derivatives via carbocyclization reaction of 2-trifluoromethyl-1,1-diphenyl-1,3-enynes

- Trifluoromethylated enynyl sulfides were directly synthesized from pentafluoroethyl dithioketal.
- Trifluoromethylated enynyl sulfones are powerful electrophiles toward organolithium reagents.
- Intramolecular palladium-catalyzed hydroarylation of trifluoromethylated enynes is a powerful tool for the construction of trifluoromethylated carbocycles.