反应 #2990767
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US07951972B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A mixture of 4-(4-chlorophenoxy)-3,5-difluoronitrobenzene (10.6 g, 37 mmol), toluene (150 ml), H2O (150 ml), iron powder (6.9 g, 124 mmol), and ammonium acetate (9.3 g, 120 mmol) was heated to reflux with stirring for 2-3 hrs. After cooling to room temperature, the reaction mixture was filtered through Celite with thorough washing with H2O and EtOAc. The filtrate was transferred to a separatory funnel and the phases separated. The aqueous phase was further extracted with EtOAc (2×). The combined organic phases were washed with H2O (1×), sat'd NaCl (1×), dried over Na2SO4, and concentrated in vacuo to give 4-(4-chlorophenoxy)-3,5-difluoroaniline (10.8 g, 113%) which was used in the next step without further purification. 1H NMR (CDCl3): δ 3.81 (s, 2H), 6.27 (d, 2H, J=9.2 Hz), 6.85 (d, 2H, J=9.2 Hz), 7.21 (d, 2H, J=9.2 Hz). was heated to reflux the reaction mixture was filtered through Celite with thorough washing with H2O and EtOAc The filtrate was transferred to a separatory funnel the phases separated The aqueous phase was further extracted with EtOAc (2×) The combined organic phases were washed with H2O (1×), sat'd NaCl (1×) dried over Na2SO4 concentrated in vacuo
来源 ID: ord-6f8d52ca06364605897ed0ed7d8faa51