4-chloro-5-iodo-2-methoxyaniline

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 4-chloro-5-iodo-2-methoxyaniline (5.0 g, 17.6 mmol), cyclopropylboronic acid (1.8 g, 21.1 mmol), Pd(OAc)2 (314 mg, 1.4 mmol), tricyclohexylphosphine (500 mg, 17.6 mmol), K3PO4.3H2O (16.4 g, 61.6 mmol) in toluene (62.5 mL) and H2O (3 mL) was stirred at 80° C. under argon for 16 h. The mixture was allowed to cool to RT, and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=10:1) to afford the desired product (3.1 g, 88.5% yield). ESI-MS m/z: 198.2[M+H]+. to cool to RT partitioned between ethyl acetate and water The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=10:1)

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

Procedure: A mixture of 4-chloro-5-iodo-2-methoxybenzenamine (1.0 g, 3.53 mmol), 4,4,5,5-tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane (889 mg, 5.29 mmol), Pd(PPh3)4 (363 mg, 0.353 mmol), Na2CO3 (1.12 g, 10.6 mmol) in DME (10 mL) and water (3 mL) was stirred at reflux under argon for 6 h. The reaction mixture was allowed to cool to RT and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (5% petroleum ether/ethyl acetate) to afford the desired product (173 mg, 25% yield) as an off-white solid. ESI-MS m/z: 198.5[M+H]+. at reflux under argon for 6 h extracted with ethyl acetate The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (5% petroleum ether/ethyl acetate)

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

Procedure: To a stirred solution of 4-chloro-5-iodo-2-methoxyaniline (968 mg, 3.42 mmol) in anhydrous THF (20 mL) at 0° C., NaH (60% in mineral oil, 205.2 mg, 5.13 mmol) was added and the resulting mixture was stirred at reflux under nitrogen for 1 h. To this mixture, tert-butyl-4-(2-bromoethyl)piperazine-1-carboxylate (500 mg, 1.71 mmol) was added and the resulting mixture was stirred at room temperature for 15 h. The mixture was concentrated in vacuo and the residue was partitioned between ethyl acetate and brine. The organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether) to afford the desired product (180 mg, 21% yield) as a solid. at reflux under nitrogen for 1 h the resulting mixture was stirred at room temperature for 15 h The mixture was concentrated in vacuo the residue was partitioned between ethyl acetate and brine The organic layer was dried over anhydrous Na2SO4 filtered concentrated in vacuo The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether)

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

Procedure: To a stirred solution of 4-chloro-5-iodo-2-methoxyaniline (968 mg, 3.42 mmol) in anhydrous THF (20 mL) at 0° C., NaH (60% in mineral oil, 205.2 mg, 5.13 mmol) was added and the resulting mixture was stirred at reflux under nitrogen for 1 h. To this mixture, tert-butyl-4-(2-bromoethyl)piperazine-1-carboxylate (500 mg, 1.71 mmol) was added and the resulting mixture was stirred at room temperature for 15 h. The mixture was concentrated in vacuo and the residue was partitioned between ethyl acetate and brine. The organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether) to afford the desired product (180 mg, 21% yield) as a solid. at reflux under nitrogen for 1 h the resulting mixture was stirred at room temperature for 15 h The mixture was concentrated in vacuo the residue was partitioned between ethyl acetate and brine The organic layer was dried over anhydrous Na2SO4 filtered concentrated in vacuo The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether)

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 4-chloro-5-iodo-2-methoxybenzenamine (4.1 g, 14.5 mmol), 2,5-dichlorophenylboronic acid (3.3 g, 17.4 mmol), Pd(PPh3)4 (500 mg, 1.45 mmol) and Na2CO3 (4.7 g, 43.5 mmol) in 1,4-dioxane (150 mL) and water (15 mL) was stirred at 80° C. under argon for 16 h. The mixture was allowed to cool to room temperature, and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1) to afford the desired product (3.3 g, 75.8% yield) as an off-white solid. to cool to room temperature partitioned between ethyl acetate and water The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1)

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

Procedure: To a solution of 4-chloro-5-iodo-2-methoxybenzenamine (6 g, 21.2 mmol) in MeOH (50 mL) at room temperature, AcOH (3 drops) and ethyl glyoxalate (5.6 g, 27.5 mmol, 50% in toluene) were added. The mixture was stirred at room temperature for 2 h and then sodium cyanoborohydride (5.32 g, 84.8 mmol) was added to the mixture. The resulting mixture was stirred at 50° C. for 16 h. The mixture was allowed to cool to room temperature, and partitioned between ethyl acetate and water. The organic layer was dried over MgSO4, filtered, and concentrated in vacuo to afford the crude product (8.6 g). The resulting mixture was stirred at 50° C. for 16 h to cool to room temperature partitioned between ethyl acetate and water The organic layer was dried over MgSO4 filtered concentrated in vacuo

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1-chloro-2-iodo-5-methoxy-4-nitrobenzene (113 g, 0.361 mol) in acetic acid (1 L) and water (50 mL) at 50° C., Fe (50.5 g, 0.903 mol) was added and the resulting mixture was stirred at 50° C. for 2 h. The mixture was allowed to cool to room temperature and then poured into ice-water. The precipitate was collected by filtration and rinsed with water. This crude product was dissolved with ethyl acetate (1 L) and filtered. The filtrate was washed with saturated NaHCO3 solution and brine. The organic layer was dried over MgSO4, filtered, and concentrated in vacuo to afford the desired product (87 g, 85% yield). to cool to room temperature The precipitate was collected by filtration rinsed with water This crude product was dissolved with ethyl acetate (1 L) filtered The filtrate was washed with saturated NaHCO3 solution and brine The organic layer was dried over MgSO4 filtered concentrated in vacuo

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 1-chloro-2-iodo-5-methoxy-4-nitrobenzene (113 g, 0.361 mol) in acetic acid (1 L) and water (50 mL) at 50° C., Fe (50.5 g, 0.903 mol) was added and the resulting mixture was stirred at 50° C. for 2 h. The mixture was allowed to cool to room temperature and then poured into ice-water. The precipitate was collected by filtration and rinsed with water. This crude product was dissolved with ethyl acetate (1 L) and filtered. The filtrate was washed with saturated NaHCO3 solution and brine. The organic layer was dried over MgSO4, filtered, and concentrated in vacuo to afford the desired product (87 g, 85% yield). to cool to room temperature The precipitate was collected by filtration rinsed with water This crude product was dissolved with ethyl acetate (1 L) filtered The filtrate was washed with saturated NaHCO3 solution and brine The organic layer was dried over MgSO4 filtered concentrated in vacuo

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 4-chloro-5-iodo-2-methoxyaniline (5.0 g, 17.6 mmol), cyclopropylboronic acid (1.8 g, 21.1 mmol), Pd(OAc)2 (314 mg, 1.4 mmol), tricyclohexylphosphine (500 mg, 17.6 mmol), K3PO4.3H2O (16.4 g, 61.6 mmol) in toluene (62.5 mL) and H2O (3 mL) was stirred at 80° C. under argon for 16 h. The mixture was allowed to cool to RT, and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=10:1) to afford the desired product (3.1 g, 88.5% yield). ESI-MS m/z: 198.2[M+H]+. to cool to RT partitioned between ethyl acetate and water The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=10:1)

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

Procedure: A mixture of 4-chloro-5-iodo-2-methoxybenzenamine (1.0 g, 3.53 mmol), 4,4,5,5-tetramethyl-2-(prop-1-en-2-yl)-1,3,2-dioxaborolane (889 mg, 5.29 mmol), Pd(PPh3)4 (363 mg, 0.353 mmol), Na2CO3 (1.12 g, 10.6 mmol) in DME (10 mL) and water (3 mL) was stirred at reflux under argon for 6 h. The reaction mixture was allowed to cool to RT and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (5% petroleum ether/ethyl acetate) to afford the desired product (173 mg, 25% yield) as an off-white solid. ESI-MS m/z: 198.5[M+H]+. at reflux under argon for 6 h extracted with ethyl acetate The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (5% petroleum ether/ethyl acetate)

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

Procedure: To a stirred solution of 4-chloro-5-iodo-2-methoxyaniline (968 mg, 3.42 mmol) in anhydrous THF (20 mL) at 0° C., NaH (60% in mineral oil, 205.2 mg, 5.13 mmol) was added and the resulting mixture was stirred at reflux under nitrogen for 1 h. To this mixture, tert-butyl-4-(2-bromoethyl)piperazine-1-carboxylate (500 mg, 1.71 mmol) was added and the resulting mixture was stirred at room temperature for 15 h. The mixture was concentrated in vacuo and the residue was partitioned between ethyl acetate and brine. The organic layer was dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether) to afford the desired product (180 mg, 21% yield) as a solid. at reflux under nitrogen for 1 h the resulting mixture was stirred at room temperature for 15 h The mixture was concentrated in vacuo the residue was partitioned between ethyl acetate and brine The organic layer was dried over anhydrous Na2SO4 filtered concentrated in vacuo The residue was purified by flash column chromatography on silica gel (10-30% ethyl acetate/petroleum ether)

Conditions: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 4-chloro-5-iodo-2-methoxybenzenamine (4.1 g, 14.5 mmol), 2,5-dichlorophenylboronic acid (3.3 g, 17.4 mmol), Pd(PPh3)4 (500 mg, 1.45 mmol) and Na2CO3 (4.7 g, 43.5 mmol) in 1,4-dioxane (150 mL) and water (15 mL) was stirred at 80° C. under argon for 16 h. The mixture was allowed to cool to room temperature, and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1) to afford the desired product (3.3 g, 75.8% yield) as an off-white solid. to cool to room temperature partitioned between ethyl acetate and water The organic layer was washed with brine dried over Na2SO4 concentrated in vacuo The residue was purified by flash column chromatography on silica gel (petroleum ether/ethyl acetate=20:1)