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A mixture of 8.60 g (0.05 mol) of 4-bromoaniline, 10.60 g (0.10 mol) of Na2CO3, and 6.78 g (0.06 mol) of chloroacetyl chloride in 100 mL of acetone was stirred at ambient temperature for 3 h. The mixture was concentrated in vacuo, and the residue was partitioned between EtOAc and H2O. The organic layer was separated, washed with H2O, dried over Na2SO4, filtered, and evaporated in vacuo to give 11.4 g of analytically pure title compound as light crystals.

1. concentrationThe mixture was concentrated in vacuo
2. customthe residue was partitioned between EtOAc and H2O
3. customThe organic layer was separated
4. washwashed with H2O
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. customevaporated in vacuo