[F:1][C:2]([F:11])([F:10])[C:3]1[CH:4]=[C:5]([OH:9])[CH:6]=[CH:7][CH:8]=1.[Cl:12][C:13]1[CH:18]=[CH:17][C:16]([CH:19](Br)[C:20]#[N:21])=[CH:15][CH:14]=1.C(=O)([O-])[O-].[K+].[K+]>C(Cl)Cl>[F:1][C:2]([F:10])([F:11])[C:3]1[CH:4]=[C:5]([CH:6]=[CH:7][CH:8]=1)[O:9][CH:19]([C:16]1[CH:17]=[CH:18][C:13]([Cl:12])=[CH:14][CH:15]=1)[C:20]#[N:21]To a solution of 3-trifluoromethylphenol (16.2 g., 0.1 mole) and 4-chlorophenyl-α-bromoacetonitrile (23.05 g., 0.1 mole) in methylene chloride (200 ml.) is added potassium carbonate (27.6 g., 0.2 mole). The reaction mixture is stirred and heated under reflux for six hours. The reaction mixture is then cooled to 25°C. and washed with water (300 ml.). The organic layer is dried over sodium sulfate, filtered and the solvent removed to afford crude (3-trifluoromethylphenoxy)(4-chlorophenyl)acetonitrile which is employed in the next step without further purification.
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