[NH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[C:9](Cl)=[CH:10][C:11]([C:13]1[C:14]([Cl:24])=[N:15][C:16]([Cl:23])=[CH:17][C:18]=1[C:19]([F:22])([F:21])[F:20])=[O:12].Cl>O1CCOCC1>[NH:1]([C:9]([NH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)=[CH:10][C:11]([C:13]1[C:14]([Cl:24])=[N:15][C:16]([Cl:23])=[CH:17][C:18]=1[C:19]([F:22])([F:21])[F:20])=[O:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1A solution of aniline (18.4 mL, 202 mmol) in TEA (28.2 mL, 202 mmol) was added slowly to a cooled (0° C.) and stirred solution of 3,3-dichloro-I-[2,6-dichloro-4- (trifluoromethyl)-3-pyridinyl]-2-propen-1-one (22.9 g, 67.4 mmol) in dioxane (220 mL). The reaction was allowed to warm to room temperature and was stirred overnight. The mixture was treated with 10% HCl and extracted with Et2O (3×). The combined organic extracts were washed with brine, dried over Na2SO4 and concentrated in vacuo. Silica gel flash chromatography of the residue using 6:1 Hex:EtOAc gave 3,3-dianilino-1-[2,6-dichloro-4-(trifluoromethyl)-3-pyridinyl]-2-propen-1-one as an off-white solid (13.10 g, 43%): 1H-NMR (d6-DMSO, 300 MHz) δ12.24 (br s, 1H), 9.20 (br s, 1H), 7.95 (s, 1H), 7.12-7.42 (m, 10H), 4.82 (s, 1H); Rf=0.60 (6:1 Hex:EtOAc).
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