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Reaction conditions (Method B): reactions were conducted on a 0.2 mmol scale using 2.5 equiv. NIS, 2.5 equiv. TMSN3 in 2.0 mL CCl4, 80 °C, under an Ar atmosphere, and 7 h. Isolated yields.
Reaction conditions (Method C): reactions were conducted on a 0.3 mmol scale using 0.55 equiv. 1,3-dibromo-5,5-dimethylhydantoin (DBDMH), 1.1 equiv. TogniN3 in 2.0 mL DCE, 80 °C, under an Ar atmosphere, and 12 h. Isolated yields.
