Reacción #620

Ecuación de reacción

COC(=O)c1cc(Br)cc(I)

Nc1ccccc1

→

COC(=O)c1cc(Br)cc(Nc

Rendimiento 40.5%

Disolventes

Cc1ccccc1

Condiciones de reacción

Procedimiento

diacetoxypalladium (0.314 g, 1.40 mmol) and 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (0.871 g, 1.40 mmol) were added to a degassed mixture of methyl 3-bromo-5-iodobenzoate (4.77 g, 13.99 mmol), aniline (2.55 ml, 13.99 mmol) and cesium carbonate (3.87 g, 11.89 mmol) in toluene (137 ml) under nitrogen. The resulting mixture was stirred at 110 °C for 18 hours. The resulting mixture was evaporated to dryness and the residue was diluted with EtOAc (150 mL), and washed with water (100 mL), the organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 15% EtOAc in heptane. Pure fractions were evaporated to dryness to afford methyl 3-bromo-5-(phenylamino)benzoate (1.735 g, 40.5 %) as a pale yellow solid.

Fuente