2-(2-aminophenyl)isoindole-1,3-dione

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Phthalimidoaniline (44.0 g, 0.21 moles) and ethyl 2-butyryl-3-ethoxyacrylate (45 g, 0.21 moles) were heated together in fusion for 10 minutes then allowed to cool, forming a tan solid. The ethyl 2-buryryl-3-(2-phthalimidophenylamino)acrylate (83.0 g, 97%) was stirred in ether, filtered and dried under vacuum, m.p 153°-5° C. to cool forming a tan solid filtered dried under vacuum, m.p 153°-5° C.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-aminophenyl)isoindole-1,3-dione (360 mg, 1.5 mmol) in acetic acid (20 mL) and water (4 mL) was added dropwise a solution of sodium nitrite (98 mg, 1.42 mmol) in water (2 mL). The mixture was allowed to stir for 10 minutes and then sodium azide (98 mg, 1.51 mmol) was added. The reaction mixture was stirred for 15 minutes before it was poured into water and was extracted with dichloromethane (3×50 mL). The extracts were washed with water and brine and dried over magnesium sulfate. Filtration and concentration in vacuo gave 373 mg (94%) of 2-(2-azidophenyl)isoindole-1,3-dione as a solid: 1H NMR (300 MHz, DMSO-d6) δ 7.94 (m, 4H), 7.58 (m, 1H), 7.48 (m, 2H), 7.32 (m, 1H). The reaction mixture was stirred for 15 minutes before it was extracted with dichloromethane (3×50 mL) The extracts were washed with water and brine dried over magnesium sulfate Filtration and concentration in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-nitrophenyl)isoindole-1,3-dione (1.0 g, 3.50 mmol) in benzene, pre-sparged with nitrogen gas, was added 10% palladium on activated carbon (1.0 g). The reaction mixture was placed under an atmosphere of hydrogen gas and was vigorously stirred. After 45 minutes, the reaction mixture was filtered over celite and the filter pad was washed with benzene. Concentration in vacuo gave 236 mg (40%) of 2-(2-aminophenyl)-isoindole-1,3-dione as a yellow solid: 1H NMR (300 MHz, DMSO-d6) δ 8.85 (m, 4H), 7.10 (m, 1H), 6.98 (m, 1H), 6.75 (m, 1H), 6.55 (m, 1H). pre-sparged with nitrogen gas was added 10% palladium on activated carbon (1.0 g) the reaction mixture was filtered over celite the filter pad was washed with benzene Concentration in vacuo

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-aminophenyl)isoindole-1,3-dione (360 mg, 1.5 mmol) in acetic acid (20 mL) and water (4 mL) was added dropwise a solution of sodium nitrite (98 mg, 1.42 mmol) in water (2 mL). The mixture was allowed to stir for 10 minutes and then sodium azide (98 mg, 1.51 mmol) was added. The reaction mixture was stirred for 15 minutes before it was poured into water and was extracted with dichloromethane (3×50 mL). The extracts were washed with water and brine and dried over magnesium sulfate. Filtration and concentration in vacuo gave 373 mg (94%) of 2-(2-azidophenyl)isoindole-1,3-dione as a solid: 1H NMR (300 MHz, DMSO-d6) δ 7.94 (m, 4H), 7.58 (m, 1H), 7.48 (m, 2H), 7.32 (m, 1H). The reaction mixture was stirred for 15 minutes before it was extracted with dichloromethane (3×50 mL) The extracts were washed with water and brine dried over magnesium sulfate Filtration and concentration in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-nitrophenyl)isoindole-1,3-dione (1.0 g, 3.50 mmol) in benzene, pre-sparged with nitrogen gas, was added 10% palladium on activated carbon (1.0 g). The reaction mixture was placed under an atmosphere of hydrogen gas and was vigorously stirred. After 45 minutes, the reaction mixture was filtered over celite and the filter pad was washed with benzene. Concentration in vacuo gave 236 mg (40%) of 2-(2-aminophenyl)-isoindole-1,3-dione as a yellow solid: 1H NMR (300 MHz, DMSO-d6) δ 8.85 (m, 4H), 7.10 (m, 1H), 6.98 (m, 1H), 6.75 (m, 1H), 6.55 (m, 1H). pre-sparged with nitrogen gas was added 10% palladium on activated carbon (1.0 g) the reaction mixture was filtered over celite the filter pad was washed with benzene Concentration in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Phthalimidoaniline (44.0 g, 0.21 moles) and ethyl 2-butyryl-3-ethoxyacrylate (45 g, 0.21 moles) were heated together in fusion for 10 minutes then allowed to cool, forming a tan solid. The ethyl 2-buryryl-3-(2-phthalimidophenylamino)acrylate (83.0 g, 97%) was stirred in ether, filtered and dried under vacuum, m.p 153°-5° C. to cool forming a tan solid filtered dried under vacuum, m.p 153°-5° C.

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-aminophenyl)isoindole-1,3-dione (360 mg, 1.5 mmol) in acetic acid (20 mL) and water (4 mL) was added dropwise a solution of sodium nitrite (98 mg, 1.42 mmol) in water (2 mL). The mixture was allowed to stir for 10 minutes and then sodium azide (98 mg, 1.51 mmol) was added. The reaction mixture was stirred for 15 minutes before it was poured into water and was extracted with dichloromethane (3×50 mL). The extracts were washed with water and brine and dried over magnesium sulfate. Filtration and concentration in vacuo gave 373 mg (94%) of 2-(2-azidophenyl)isoindole-1,3-dione as a solid: 1H NMR (300 MHz, DMSO-d6) δ 7.94 (m, 4H), 7.58 (m, 1H), 7.48 (m, 2H), 7.32 (m, 1H). The reaction mixture was stirred for 15 minutes before it was extracted with dichloromethane (3×50 mL) The extracts were washed with water and brine dried over magnesium sulfate Filtration and concentration in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a suspension of the 2-(2-nitrophenyl)isoindole-1,3-dione (1.0 g, 3.50 mmol) in benzene, pre-sparged with nitrogen gas, was added 10% palladium on activated carbon (1.0 g). The reaction mixture was placed under an atmosphere of hydrogen gas and was vigorously stirred. After 45 minutes, the reaction mixture was filtered over celite and the filter pad was washed with benzene. Concentration in vacuo gave 236 mg (40%) of 2-(2-aminophenyl)-isoindole-1,3-dione as a yellow solid: 1H NMR (300 MHz, DMSO-d6) δ 8.85 (m, 4H), 7.10 (m, 1H), 6.98 (m, 1H), 6.75 (m, 1H), 6.55 (m, 1H). pre-sparged with nitrogen gas was added 10% palladium on activated carbon (1.0 g) the reaction mixture was filtered over celite the filter pad was washed with benzene Concentration in vacuo