2-氟-4-氯-5-甲基苯胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 2-chloro-4-fluoro-5-nitrotoluene (30.0 g, 0.158 mole) in glacial acetic acid (150 ml) was added to a 250 ml Parr bottle which contained platinum IV oxide (0.4 g). The Parr bottle was placed on a Parr hydrogenation apparatus and charged with hydrogen. The reaction mixture was allowed to shake until hydrogen absorption ceased. The catalyst was removed by vacuum filtration. The filtrate containing 4-chloro-2-fluoro-5-methylaniline was used in the following step. This reaction was repeated several times. to shake until hydrogen absorption The catalyst was removed by vacuum filtration The filtrate containing 4-chloro-2-fluoro-5-methylaniline

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 2-chloro-4-fluoro-5-nitrotoluene (30.0 g, 0.158 mole) in glacial acetic acid (150 ml) was added to a 250 ml Parr bottle which contained platinum IV oxide (0.4 g). The Parr bottle was placed on a Parr hydrogenation apparatus and charged with hydrogen. The reaction mixture was allowed to shake until hydrogen absorption ceased. The catalyst was removed by vacuum filtration. The filtrate containing 4-chloro-2-fluoro-5-methylaniline was used in the following step. This reaction was repeated several times. to shake until hydrogen absorption The catalyst was removed by vacuum filtration The filtrate containing 4-chloro-2-fluoro-5-methylaniline

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 4-Chloro-2-fluoro-5-methylaniline (5 g, 31.4 mmol) was dissolved in tetrahydrofuran (100 ml) and potassium carbonate (6.0 g, 37.7 mmol) and phenyl chloroformate (5.9 g, 37.7 mmol) were added. Solution was refluxed for 3 hr and the solvent was removed under reduced pressure. Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g). Solution was refluxed for 3 hr the solvent was removed under reduced pressure Product was purified by column chromatography on silica gel (eluent, methylene chloride:hexane, 6:4; 7.15 g)

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 2-chloro-4-fluoro-5-nitrotoluene (30.0 g, 0.158 mole) in glacial acetic acid (150 ml) was added to a 250 ml Parr bottle which contained platinum IV oxide (0.4 g). The Parr bottle was placed on a Parr hydrogenation apparatus and charged with hydrogen. The reaction mixture was allowed to shake until hydrogen absorption ceased. The catalyst was removed by vacuum filtration. The filtrate containing 4-chloro-2-fluoro-5-methylaniline was used in the following step. This reaction was repeated several times. to shake until hydrogen absorption The catalyst was removed by vacuum filtration The filtrate containing 4-chloro-2-fluoro-5-methylaniline