2-(4-bromoanilino)-1H-isoindole-1,3(2H)-dione

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and water (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and water (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (4-bromophenyl)hydrazine hydrochloride (0.5 g, 2.2 mmol) in AcOH (8 mL) was added phthalic anhydride (0.398 g, 2.690 mmol), and the reaction mixture was stirred at 130° C. for 1 h under a nitrogen atmosphere. The reaction mixture was quenched with satd aqueous NaHCO3 solution and filtered to give a solid. Purification by column chromatography (SiO2, O-10% EtOAc in petroleum ether) afforded the title compound as a solid (60 mg, 84%): mp 205-206° C.; 1H NMR (400 MHz, CDCl3) δ 8.71 (s, 1H), 7.99 (m, 4H), 7.32 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H); ESIMS m/z 314.95 ([M−H]−). The reaction mixture was quenched with satd aqueous NaHCO3 solution filtered to give a solid Purification by column chromatography (SiO2

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and water (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and water (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (4-bromophenyl)hydrazine hydrochloride (0.5 g, 2.2 mmol) in AcOH (8 mL) was added phthalic anhydride (0.398 g, 2.690 mmol), and the reaction mixture was stirred at 130° C. for 1 h under a nitrogen atmosphere. The reaction mixture was quenched with satd aqueous NaHCO3 solution and filtered to give a solid. Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether) afforded the title compound as a solid (60 mg, 84%): mp 205-206° C.; 1H NMR (400 MHz, CDCl3) δ 8.71 (s, 1H), 7.99 (m, 4H), 7.32 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H); ESIMS m/z 314.95 ([M−H]−). The reaction mixture was quenched with satd aqueous NaHCO3 solution filtered to give a solid Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether)

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and H2O (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (4-bromophenyl)hydrazine hydrochloride (0.5 g, 2.2 mmol) in glacial acetic acid (8 mL) was added phthalic anhydride (0.398 g, 2.690 mmol), and the reaction mixture was stirred at 130° C. for 1 h under a nitrogen atmosphere. The reaction mixture was quenched with satd aq. NaHCO3 solution and filtered to give a solid. Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether) afforded the title compound as a solid (60 mg, 84%): mp 205-206° C.; 1H NMR (400 MHz, CDCl3) δ 8.71 (s, 1H), 7.99 (m, 4H), 7.32 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H); ESIMS m/z 314.95 ([M−H]−). The reaction mixture was quenched with satd aq. NaHCO3 solution filtered to give a solid Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether)

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and H2O (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (4-bromophenyl)hydrazine hydrochloride (0.5 g, 2.2 mmol) in glacial acetic acid (8 mL) was added phthalic anhydride (0.398 g, 2.690 mmol), and the reaction mixture was stirred at 130° C. for 1 h under a nitrogen atmosphere. The reaction mixture was quenched with satd aq. NaHCO3 solution and filtered to give a solid. Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether) afforded the title compound as a solid (60 mg, 84%): mp 205-206° C.; 1H NMR (400 MHz, CDCl3) δ 8.71 (s, 1H), 7.99 (m, 4H), 7.32 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H); ESIMS m/z 314.95 ([M−H]−). The reaction mixture was quenched with satd aq. NaHCO3 solution filtered to give a solid Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether)

Conditions: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 2-(4-bromophenylamino)isoindoline-1,3-dione (2 g, 6 mmol) in 1,2-dimethoxyethane (20 mL) and H2O (4 mL) were added vinyl boronic anhydride pyridine complex (4.57 g, 18.98 mmol) and K2CO3 (1.3 g, 9.5 mmol) followed by Pd(PPh3)4 (0.219 g, 0.189 mmol). The resultant reaction mixture was heated at 150° C. in a microwave for 30 min and then was concentrated under reduced pressure. Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether) afforded the title compound as a solid (200 mg, 13%): mp 174-176° C.; 1H NMR (400 MHz, CDCl3) δ 8.65 (s, 1H), 7.94 (m, 4H), 7.29 (d, J=8.4 Hz, 2H), 6.72 (d, J=8.4 Hz, 2H), 6.61 (m, 1H), 5.61 (d, J=17.6 Hz, 1H), 5.05 (d, J=11.2 Hz, 1H); ESIMS m/z 263.18 ([M−H]−). The resultant reaction mixture was concentrated under reduced pressure Purification by column chromatography (SiO2, 15% EtOAc in petroleum ether)

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred solution of (4-bromophenyl)hydrazine hydrochloride (0.5 g, 2.2 mmol) in glacial acetic acid (8 mL) was added phthalic anhydride (0.398 g, 2.690 mmol), and the reaction mixture was stirred at 130° C. for 1 h under a nitrogen atmosphere. The reaction mixture was quenched with satd aq. NaHCO3 solution and filtered to give a solid. Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether) afforded the title compound as a solid (60 mg, 84%): mp 205-206° C.; 1H NMR (400 MHz, CDCl3) δ 8.71 (s, 1H), 7.99 (m, 4H), 7.32 (d, J=8.8 Hz, 2H), 6.79 (d, J=8.8 Hz, 2H); ESIMS m/z 314.95 ([M−H]−). The reaction mixture was quenched with satd aq. NaHCO3 solution filtered to give a solid Purification by column chromatography (SiO2, 0-10% EtOAc in petroleum ether)