5-bromo-2-fluoro-N-methylbenzamide

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br.s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br.s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br.s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br. s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br.s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)

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

Procedure: To a mixture of 5-bromo-2-fluorobenzoic acid (200 mg, 0.91 mmol) in dichloromethane (5 mL) was added oxalyl chloride (0.16 mL, 1.8 mmol), followed by 1 drop of N,N-dimethylformamide. The reaction was stirred at room temperature for 1.5 hours. The reaction was concentrated and the resulting residue was dissolved in dichloromethane (3 mL) and cooled to 0° C. Methylamine (2.3 mL, 5 mmol, 2 M in tetrahydrofuran) was added and the reaction was allowed to stir at 0° C. for 30 minutes. The reaction was quenched with water and the mixture was concentrated. The residue was diluted with water and the resulting solids were filtered, rinsed with water, and dried under vacuum to give the title compound (196.6 mg, 93%) as a white solid. +ESI (M+H+1) 234.1; 1H NMR (400 MHz, CDCl3, δ); 8.22 (dd, J=6.83, 2.73 Hz, 1H), 7.55 (ddd, J=8.68, 4.49, 2.63 Hz, 1H), 7.00 (dd, J=11.32, 8.58 Hz, 1H), 6.67 (br. s., 1H), 3.02 (dd, J=4.88, 1.17 Hz, 3H). The reaction was concentrated the resulting residue was dissolved in dichloromethane (3 mL) cooled to 0° C to stir at 0° C. for 30 minutes The reaction was quenched with water the mixture was concentrated The residue was diluted with water the resulting solids were filtered rinsed with water dried under vacuum

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 5-bromo-2-fluoro-N-methylbenzamide (500 mg, 2 mmol) and Lawesson's reagent (872 mg, 2.16 mmol) in toluene (10 mL) was heated to 100° C. and stirred for 3.5 hours. The reaction was cooled to room temperature, diluted with toluene, and filtered. The filtrate was concentrated and purified by flash column chromatography (0-20% ethyl acetate/heptanes) to give the title compound (494 mg, 92%) as a yellow oil that solidified upon standing. +ESI (M+H+1) 250.1; 1H NMR (400 MHz, CDCl3, δ): 8.20 (dd, J=6.93, 2.63 Hz, 1H), 8.06 (br.s., 1H), 7.47 (ddd, J=8.73, 4.44, 2.63 Hz, 1H), 6.95 (dd, J=11.12, 8.78 Hz, 1H), 3.32 (dd, J=4.88, 0.78 Hz, 3H). The reaction was cooled to room temperature filtered The filtrate was concentrated purified by flash column chromatography (0-20% ethyl acetate/heptanes)