2-(4-氨基苯氧基)乙酸乙酯

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Ethyl(4-nitrophenoxy)acetate (10.0 g, 44.4 mmol) and 10% palladium-carbon (50% water-containing product, 3.0 g) were added to a mixed solution of tetrahydrofuran (50 mL) and ethanol (50 mL), and the mixture was stirred at room temperature for 18 hr in a hydrogen stream. The catalyst was filtered off, and the filtrate was concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=1:2-2:3-1:1), and the obtained crystals were recrystallized from ethyl acetate-hexane to give the title compound (6.4 g, yield 74%) as pale-pink prism crystals. The catalyst was filtered off the filtrate was concentrated under reduced pressure the obtained crystals were recrystallized from ethyl acetate-hexane

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Potassium carbonate and benzyl bromoacetate were added to DMF solution of ethyl (4-aminophenoxy)acetate and stirred under heating. After adding water and ethyl acetate to the reaction mixture, the organic layer was separated, washed and dried, and then the solvent was evaporated under a reduced pressure. Dichloromethane solution of the thus obtained crude product was mixed with TEA, 4-fluorobenzoyl chloride was added dropwise thereto under ice-cooling and then the reaction solution was stirred. After adding 1 M hydrochloric acid to the reaction solution, the organic layer was separated, washed and dried, and then the solvent was evaporated under a reduced pressure. By purifying the thus obtained crude product by SCG, ethyl {4-[benzyloxycarbonylmethyl-(4-fluorobenzoyl)amino]phenoxy}acetate (colorless oil) was obtained. under heating the organic layer was separated washed dried the solvent was evaporated under a reduced pressure Dichloromethane solution of the thus obtained crude product was added dropwise under ice-cooling the reaction solution was stirred the organic layer was separated washed dried the solvent was evaporated under a reduced pressure By purifying the thus obtained crude product by SCG

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Potassium carbonate and benzyl bromoacetate were added to DMF solution of ethyl (4-aminophenoxy)acetate and stirred under heating. After adding water and ethyl acetate to the reaction mixture, the organic layer was separated, washed and dried, and then the solvent was evaporated under a reduced pressure. Dichloromethane solution of the thus obtained crude product was mixed with TEA, 4-fluorobenzoyl chloride was added dropwise thereto under ice-cooling and then the reaction solution was stirred. After adding 1 M hydrochloric acid to the reaction solution, the organic layer was separated, washed and dried, and then the solvent was evaporated under a reduced pressure. By purifying the thus obtained crude product by SCG, ethyl {4-[benzyloxycarbonylmethyl-(4-fluorobenzoyl)amino]phenoxy}acetate (colorless oil) was obtained. under heating the organic layer was separated washed dried the solvent was evaporated under a reduced pressure Dichloromethane solution of the thus obtained crude product was added dropwise under ice-cooling the reaction solution was stirred the organic layer was separated washed dried the solvent was evaporated under a reduced pressure By purifying the thus obtained crude product by SCG

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of ethyl 4-nitrophenoxyacetate (15 g) in EtOH (400 mL) was hydrogenated at 40 PSI for 40 minutes in the presence of 10% Pd/C (1.5 g, 10% by weight). After the filtration through a celite the solvent was removed under a reduced pressure to obtain ethyl 4-aminophenoxyacetate. 1H NMR (CDCl3): δ 6.77 (d, 2H, 8.1 Hz), 6.60 (d, 2H, J=8.0 Hz), 4.50 (s, 2H), 4.24 (q, 2H), 1.24 (t, 3H); LCMS: ret. time: 12.00 min.; purity: 100%; MS (m/e): 196 (MH+). After the filtration through a celite the solvent was removed under a reduced pressure