Table 1.
Conditions: 0.1 mmol of 1a, 1.5 equiv of Selectfluor, 10 mol% of Pd(TFA)2, 10 mol% of ligand, 2.0 equiv of Ag2CO3, 1.5 mL of 1,4-dioxane, 115 °C, under air, 15 h.
The yield was determined by 1H NMR analysis of the crude product using CH2Br2 as the internal standard.
N.P. means no desired product.