Scheme 2. Scope of Ethynylbenziodoxol(on)es.

aVacetonitrile:Vbenzene = 1:1, see Table S1. Reaction conditions: 1 (0.30 mmol), 2 (0.20 mmol), base (0.30 mmol), solvent (1.5 mL), room temperature, N2. Isolated yield reported.

aVacetonitrile:Vbenzene = 1:1, see Table S1. Reaction conditions: 1 (0.30 mmol), 2 (0.20 mmol), base (0.30 mmol), solvent (1.5 mL), room temperature, N2. Isolated yield reported.