Table 2. Screening of our Different Heterogenous Sources of Fluoride in the β-Azidation of 1a to 2a^ac.

^aReaction conditions: 1a (1 mmol), TMSN₃ (1.05), fluoride sources (5 mol % of F^–), CH₃CN:H₂O_Az. (5 M), 60 °C.

^bDVB = divinylbenzene; PTHF = polytetrahydrofuran based cross-linker.

^cConversion determined by GC analysis. The remaining material is unreacted 1a.