[Br:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5](Cl)=[O:6].Br[C:12]1[CH:18]=[CH:17][CH:16]=[CH:15][C:13]=1[NH2:14].C([O-])([O-])=O.[Cs+].[Cs+].N1C2C(=CC=C3C=2N=CC=C3)C=CC=1>O1CCOCC1.[Cu]I.O.C(OCC)(=O)C>[Br:1][C:2]1[CH:3]=[C:4]([C:5]2[O:6][C:12]3[CH:18]=[CH:17][CH:16]=[CH:15][C:13]=3[N:14]=2)[CH:8]=[CH:9][CH:10]=1
A mixture of 3-bromobenzoyl chloride (10.0 g, 45.6 mmol), 2-bromoaniline (7.91 g, 46 mmol), Cs2CO3 (30 g, 92 mmol), CuI (0.437 g, 2.3 mmol) and 1,10-phenanthroline (0.829 g, 4.6 mmol) in anhydrous 1,4-dioxane (110 ml) was heated at 120° C. for 8 h. After cooling to RT, the mixture was poured into ethyl acetate (300 ml), worked up with water (250 ml). The aqueous solution was extracted with dichloromethane (300 ml). The organic phase was collected, combined, and dried over Na2SO4. Purification by a short silica gel column (hexanes/ethyl acetate 3:1) gave a solid which was washed with hexanes to give a light yellow solid 1 (9.54 g, 76% yield).
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