Table 2. Substrate scope for silver-mediated oxidative trifluoromethoxylation and trifluoromethylthiolation of alkylsilanes ^a .

^aConditions A: alkylsilanes (1.0 equiv.), AgF (4.0 equiv.), 3,4,7,8-tetramethyl-1,10-phenanthroline (0.3 equiv.), Selectfluor (3.0 equiv.), TFMS (2) (5.0 equiv.), MeCN/DCM (v/v 7 : 2), N₂ atmosphere, 25 °C. Conditions B: alkylsilanes (1.0 equiv.), AgSCF₃ (4.0 equiv.), 4,4′-di-tert-butyl-2,2′-bipyridine (0.4 equiv.), Selectfluor (3.0 equiv.), CsF (4.0 equiv.), MeCN/dioxane (v/v 1 : 1), N₂ atmosphere, 50 °C. Yields of isolated products are given.

^b25 °C was used.

^cMeCN/DCM (v/v 1 : 1) was used.

^dYield was determined by ¹⁹F NMR with benzotrifluoride as a standard.