“…The organic layer was washed with brine, dried over Na 2 SO 4 and then concentrated in vacuo. The crude mixture was then subjected to column chromatography (100-200 silica gel) using ethyl acetate:hexane (95: 5 The solution of 2-bromoaniline (2.0 g, 11.62 mmol), bis[pinaclolato]diboron (3.24 g, 12.78 mmol), potassium acetate (1.7 g, 17.43 mmol), and tricyclohexyl phosphine (0.39 g, 1.39 mmol) in dry dioxane (15 ml) was purged with nitrogen for 15 min followed by the addition of tris[dibenzylideneacetone]dipalladium(0) (0.53 g, 0.58 mmol). The reaction mixture was heated at 80 C for 16 h, filtered through Celite, washed with ethyl acetate and concentrated to get the product, which was used without further purification.…”