The direct α‐siladifluoromethylation of lithiumenolates with the Ruppert–Prakash reagent (CF3TMS) is shown to construct the tertiary and quaternary carbon centers. The Ruppert–Prakash reagent, which is versatile for various trifluoromethylation as a trifluoromethyl anion (CF3−) equivalent, can be employed as a siladifluoromethyl cation (TMSCF2+) equivalent by CFbondactivation due to the strong