methyl 5-chloro-2-(methylamino)benzoate

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of methyl 2-amino-5-chlorobenzoate (1.0 g, 5.4 mmol), iodomethane (0.75 ml, 12.0 mmol), potassium carbonate (1.7 g, 12.4 mmol), and acetonitrile (20 ml) was stirred for 48 hours. The mixture was filtered through a pad of celite under suction and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19) to provide 5-chloro-2-methylaminobenzoic acid methyl ester (137 mg, 13% yield) followed by 5-chloro-2-dimethylaminobenzoic acid methyl ester (809 mg, 70% yield). The mixture was filtered through a pad of celite under suction the filtrate was concentrated under reduced pressure The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of methyl 2-amino-5-chlorobenzoate (1.0 g, 5.4 mmol), iodomethane (0.75 ml, 12.0 mmol), potassium carbonate (1.7 g, 12.4 mmol), and acetonitrile (20 ml) was stirred for 48 hours. The mixture was filtered through a pad of celite under suction and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19) to provide 5-chloro-2-methylaminobenzoic acid methyl ester (137 mg, 13% yield) followed by 5-chloro-2-dimethylaminobenzoic acid methyl ester (809 mg, 70% yield). The mixture was filtered through a pad of celite under suction the filtrate was concentrated under reduced pressure The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of methyl 2-amino-5-chlorobenzoate (1.0 g, 5.4 mmol), iodomethane (0.75 ml, 12.0 mmol), potassium carbonate (1.7 g, 12.4 mmol), and acetonitrile (20 ml) was stirred for 48 hours. The mixture was filtered through a pad of celite under suction and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19) to provide 5-chloro-2-methylaminobenzoic acid methyl ester (137 mg, 13% yield) followed by 5-chloro-2-dimethylaminobenzoic acid methyl ester (809 mg, 70% yield). The mixture was filtered through a pad of celite under suction the filtrate was concentrated under reduced pressure The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of methyl 2-amino-5-chlorobenzoate (1.0 g, 5.4 mmol), iodomethane (0.75 ml, 12.0 mmol), potassium carbonate (1.7 g, 12.4 mmol), and acetonitrile (20 ml) was stirred for 48 hours. The mixture was filtered through a pad of celite under suction and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19) to provide 5-chloro-2-methylaminobenzoic acid methyl ester (137 mg, 13% yield) followed by 5-chloro-2-dimethylaminobenzoic acid methyl ester (809 mg, 70% yield). The mixture was filtered through a pad of celite under suction the filtrate was concentrated under reduced pressure The residue was purified by flash chromatography on silica eluting with ethyl acetate-hexane (1:19)