2-anilinobenzonitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a sodium ethoxide/ethanol solution which had been prepared from 2.07 g (90 mmol) of metallic sodium and 75 ml of anhydrous ethanol, 14.4 g (90 mmol) of ethyl malonate were added dropwise at room temperature. After the resultant mixture was stirred for 30 minutes as was, 5.82 g (30 mmol) of 2-phenylaminobenzonitrile were added and the mixture so obtained was heated under reflux for 48 hours. The reaction mixture was concentrated under reduced pressure, followed by the addition of ethyl acetate. The resulting solution was washed with water and was then dried. The solvent was distilled off under reduced pressure. The residue was purified by chromatography on a silica gel column and was then recrystallized from chloroform/hexane, whereby 4.78 g of ethyl 4-amino-2-oxo-1-phenyl-1,2-dihydro-quinoline-3-carboxylate (Compound No. 1) were obtained (yield: 51.7%). were added dropwise at room temperature the mixture so obtained was heated under reflux for 48 hours The reaction mixture was concentrated under reduced pressure followed by the addition of ethyl acetate The resulting solution was washed with water was then dried The solvent was distilled off under reduced pressure The residue was purified by chromatography on a silica gel column was then recrystallized from chloroform/hexane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a sodium ethoxide/ethanol solution which had been prepared from 2.07 g (90 mmol) of metallic sodium and 75 ml of anhydrous ethanol, 14.4 g (90 mmol) of ethyl malonate were added dropwise at room temperature. After the resultant mixture was stirred for 30 minutes as was, 5.82 g (30 mmol) of 2-phenylaminobenzonitrile were added and the mixture so obtained was heated under reflux for 48 hours. The reaction mixture was concentrated under reduced pressure, followed by the addition of ethyl acetate. The resulting solution was washed with water and was then dried. The solvent was distilled off under reduced pressure. The residue was purified by chromatography on a silica gel column and was then recrystallized from chloroform/hexane, whereby 4.78 g of ethyl 4-amino-2-oxo-1-phenyl-1,2-dihydro-quinoline-3-carboxylate (Compound No. 1) were obtained (yield: 51.7%). were added dropwise at room temperature the mixture so obtained was heated under reflux for 48 hours The reaction mixture was concentrated under reduced pressure followed by the addition of ethyl acetate The resulting solution was washed with water was then dried The solvent was distilled off under reduced pressure The residue was purified by chromatography on a silica gel column was then recrystallized from chloroform/hexane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a sodium ethoxide/ethanol solution which had been prepared from 2.07 g (90 mmol) of metallic sodium and 75 ml of anhydrous ethanol, 14.4 g (90 mmol) of ethyl malonate were added dropwise at room temperature. After the resultant mixture was stirred for 30 minutes as was, 5.82 g (30 mmol) of 2-phenylaminobenzonitrile were added and the mixture so obtained was heated under reflux for 48 hours. The reaction mixture was concentrated under reduced pressure, followed by the addition of ethyl acetate. The resulting solution was washed with water and was then dried. The solvent was distilled off under reduced pressure. The residue was purified by chromatography on a silica gel column and was then recrystallized from chloroform/hexane, whereby 4.78 g of ethyl 4-amino-2-oxo-1-phenyl-1,2-dihydro-quinoline-3-carboxylate (Compound No. 1) were obtained (yield: 51.7%). were added dropwise at room temperature the mixture so obtained was heated under reflux for 48 hours The reaction mixture was concentrated under reduced pressure followed by the addition of ethyl acetate The resulting solution was washed with water was then dried The solvent was distilled off under reduced pressure The residue was purified by chromatography on a silica gel column was then recrystallized from chloroform/hexane

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 2-bromobenzonitrile (1.5 g, 8.2 mmol), aniline (1.1 g, 12.4 mmol), Xantphos (0.7 g, 1.2 mmol) and cesium carbonate (5.4 g, 16.5 mmol) in dioxane (50 mL) was added Pd2dba3 (375 mg, 0.4 mmol) at rt under N2. The reaction was stirred at 90° C. for 8 h. The reaction mixture was filtered and concentrated. Purification by silica gel chromatography (PE:EtOAc=200:1) gave 1.3 g (81%) of the title compound as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 6.36 (1H, br s), 6.86 (1H, td, J=0.9, 7.8 Hz), 7.13-7.18 (4H, m), 7.36-7.41 (3H, m), 7.51 (1H, dd, J=1.8, 7.8 Hz). The reaction mixture was filtered concentrated Purification by silica gel chromatography (PE:EtOAc=200:1)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 2-bromobenzonitrile (1.5 g, 8.2 mmol), aniline (1.1 g, 12.4 mmol), Xantphos (0.7 g, 1.2 mmol) and cesium carbonate (5.4 g, 16.5 mmol) in dioxane (50 mL) was added Pd2dba3 (375 mg, 0.4 mmol) at rt under N2. The reaction was stirred at 90° C. for 8 h. The reaction mixture was filtered and concentrated. Purification by silica gel chromatography (PE:EtOAc=200:1) gave 1.3 g (81%) of the title compound as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 6.36 (1H, br s), 6.86 (1H, td, J=0.9, 7.8 Hz), 7.13-7.18 (4H, m), 7.36-7.41 (3H, m), 7.51 (1H, dd, J=1.8, 7.8 Hz). The reaction mixture was filtered concentrated Purification by silica gel chromatography (PE:EtOAc=200:1)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 2-bromobenzonitrile (1.5 g, 8.2 mmol), aniline (1.1 g, 12.4 mmol), Xantphos (0.7 g, 1.2 mmol) and cesium carbonate (5.4 g, 16.5 mmol) in dioxane (50 mL) was added Pd2dba3 (375 mg, 0.4 mmol) at rt under N2. The reaction was stirred at 90° C. for 8 h. The reaction mixture was filtered and concentrated. Purification by silica gel chromatography (PE:EtOAc=200:1) gave 1.3 g (81%) of the title compound as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 6.36 (1H, br s), 6.86 (1H, td, J=0.9, 7.8 Hz), 7.13-7.18 (4H, m), 7.36-7.41 (3H, m), 7.51 (1H, dd, J=1.8, 7.8 Hz). The reaction mixture was filtered concentrated Purification by silica gel chromatography (PE:EtOAc=200:1)

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 2-bromobenzonitrile (1.5 g, 8.2 mmol), aniline (1.1 g, 12.4 mmol), Xantphos (0.7 g, 1.2 mmol) and cesium carbonate (5.4 g, 16.5 mmol) in dioxane (50 mL) was added Pd2 dba3 (375 mg, 0.4 mmol) at rt under N2. The reaction was stirred at 90° C. for 8 h. The reaction mixture was filtered and concentrated. Purification by silica gel chromatography (PE:EtOAc=200:1) gave 1.3 g (81%) of the title compound as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 6.36 (1H, br s), 6.86 (1H, td, J=0.9, 7.8 Hz), 7.13-7.18 (4H, m), 7.36-7.41 (3H, m), 7.51 (1H, dd, J=1.8, 7.8 Hz). The reaction mixture was filtered concentrated Purification by silica gel chromatography (PE:EtOAc=200:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Into a sodium ethoxide/ethanol solution which had been prepared from 2.07 g (90 mmol) of metallic sodium and 75 ml of anhydrous ethanol, 14.4 g (90 mmol) of ethyl malonate were added dropwise at room temperature. After the resultant mixture was stirred for 30 minutes as was, 5.82 g (30 mmol) of 2-phenylaminobenzonitrile were added and the mixture so obtained was heated under reflux for 48 hours. The reaction mixture was concentrated under reduced pressure, followed by the addition of ethyl acetate. The resulting solution was washed with water and was then dried. The solvent was distilled off under reduced pressure. The residue was purified by chromatography on a silica gel column and was then recrystallized from chloroform/hexane, whereby 4.78 g of ethyl 4-amino-2-oxo-1-phenyl-1,2-dihydro-quinoline-3-carboxylate (Compound No. 1) were obtained (yield: 51.7%). were added dropwise at room temperature the mixture so obtained was heated under reflux for 48 hours The reaction mixture was concentrated under reduced pressure followed by the addition of ethyl acetate The resulting solution was washed with water was then dried The solvent was distilled off under reduced pressure The residue was purified by chromatography on a silica gel column was then recrystallized from chloroform/hexane

Conditions: temp:90.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a suspension of 2-bromobenzonitrile (1.5 g, 8.2 mmol), aniline (1.1 g, 12.4 mmol), Xantphos (0.7 g, 1.2 mmol) and cesium carbonate (5.4 g, 16.5 mmol) in dioxane (50 mL) was added Pd2dba3 (375 mg, 0.4 mmol) at rt under N2. The reaction was stirred at 90° C. for 8 h. The reaction mixture was filtered and concentrated. Purification by silica gel chromatography (PE:EtOAc=200:1) gave 1.3 g (81%) of the title compound as a yellow oil. 1H NMR (300 MHz, CDCl3): δ 6.36 (1H, br s), 6.86 (1H, td, J=0.9, 7.8 Hz), 7.13-7.18 (4H, m), 7.36-7.41 (3H, m), 7.51 (1H, dd, J=1.8, 7.8 Hz). The reaction mixture was filtered concentrated Purification by silica gel chromatography (PE:EtOAc=200:1)