Cl[C:2]1[C:3]([C:12]([F:15])([F:14])[F:13])=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([CH:8]=1)[NH2:7].CC(C)([O-])C.[K+].[OH:22][C:23]1[CH:30]=[CH:29][C:26]([CH:27]=[O:28])=[CH:25][CH:24]=1.O>CN(C)C=O>[NH2:7][C:6]1[C:5]([N+:9]([O-:11])=[O:10])=[CH:4][C:3]([C:12]([F:15])([F:14])[F:13])=[C:2]([O:22][C:23]2[CH:30]=[CH:29][C:26]([CH:27]=[O:28])=[CH:25][CH:24]=2)[CH:8]=1
A solution of 5-chloro-2-nitro-4-(trifluoromethyl)aniline (0.240 g, 1.00 mmol), potassium t-butoxide (0.135 g, 1.2 mmol), and 4-hydroxybenzaldehyde (0.147 g, 1.2 mmol) in dimethylformamide (5 mL) was heated to 80 degrees Centigrade for 6 hours and then cooled. Water was added and the organics extracted using ethyl acetate (2×50 mL). The combined organics were then washed once in brine and then dried (Na2SO4), filtered and concentrated. Chromatography on silica gel using a gradient of 30%-40% ethyl acetate/hexanes eluted the product to give 0.243 g of 4-{[5-amino-4-nitro-2-(trifluoromethyl)phenyl]oxy}benzaldehyde as an yellowish solid.
Wird geladen…
