Table 3. Substrate Scope of the Trifluoromethylation Reaction of Difluoro Enol Silyl Ethers^a.

^aGeneral procedure: 6a (0.1 mmol), 2 (0.1 mmol), and FeCl₂ (0.01 mmol) were stirred in MeCN (0.5 mL) at room temperature for 2 h.

^b19F NMR yield using PhCF₃ as the internal standard.

^cWith trifluoromethylbenziodoxole 6b instead.

^dWith Umemoto reagent instead of 6a.