Table 1. Evaluation of the transient DGs a , b .
aConditions: 1a (0.1 mmol), iodobenzene (0.3 mmol), Pd(OAc)2 (10 mol%), ligands (20 mol%), AgTFA (0.3 mmol), AcOH (0.3 mmol), H2O (0.3 mmol), HFIP (0.5 mL), 80 °C, N2 atmosphere, 12 h.
bIsolated yield.
c 1a was decomposed.
dOptimal conditions. n.d.: desired product not detected.