Table 1.

Scope of Si‐free SuFEx reactions of sulfonimidoyl fluoride 1 with phenolic derivatives.^[a]

[a] Conversion was determined by ¹H NMR measurements. Isolated yield in brackets. Reaction conditions for ¹H NMR conversion: 1 (0.05 mmol), phenolic derivative 2 (1.05 equiv) and DBU (1.0 equiv) in CD₃CN (0.55 mL), rt. For isolated yield: Fluoride 1 (0.5 mmol), phenolic derivatives 2 (0.5 mmol), DBU (1.5 mmol) in anhydrous CH₃CN (1 mL), rt. [b] Hydrolysis by‐product was formed (see SI). [c] 2 equiv of DBU were used. [d] 2 equiv of 1 were used.