C(=O)([O-])[O-].[K+].[K+].[CH3:7][O:8][CH2:9][CH2:10][NH2:11].F[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[N+:19]([O-:21])=[O:20]>C1COCC1.C(OCC)(=O)C>[CH3:7][O:8][CH2:9][CH2:10][NH:11][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1[N+:19]([O-:21])=[O:20]Potassium carbonate (4.15 g) and 2-methoxyethylamine (1.3 ml) were added to a solution of 1-fluoro-2-nitrobenzene (1.56 ml) in dry THF (20 ml). The mixture was stirred at 23° for 24 h, then it was diluted with ethyl acetate, washed with a saturated ammonium chloride solution (100 ml), 10% sodium hydroxide solution (100 ml) and brine (100 ml), dried and concentrated in vacuo. The residue was purified by flash chromatography (eluting with CH-EA 3:1) to give the title compound as an orange oil (2.55 g). T.l.c. CH-EA (2:1), Rf 0.51.
Wird geladen…
