2-(3-chloropropyl)isoindole-1,3-dione

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

実験手順: To a suspension of 50 mol of isopropanol containing N,O-dimethylhydroxylamine hydrochloride (3.97 g, 40.0 mmol) was added dropwise 5.56 ml of triethylamine. After 5 minutes, there was added 2.68 g (10.0 mmol) of N-(3-bromopropyl)phthalimide and the mixture was refluxed for 33 hours. This was cooled to room temperature, then poured into 200 ml of saturated aqueous solution of sodium bicarbonate and extracted with chloroform. The organic layer was separated and was washed with water and dried over magnesium sulfate. Chloroform was distilled off and the residue was purified by column chromatography on silica gel. Development with 30% hexane-chloroform resulted in elution of 1.03 g of N-(3-chloropropyl)phthalimide and further development with chloroform resulted in 1.21 g (yield: 53%) of white crystals of N-[3-(N-methoxy-N-methylamino)propyl]-phthalimide. the mixture was refluxed for 33 hours extracted with chloroform The organic layer was separated was washed with water dried over magnesium sulfate Chloroform was distilled off the residue was purified by column chromatography on silica gel

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

実験手順: To a suspension of 50 mol of isopropanol containing N,O-dimethylhydroxylamine hydrochloride (3.97 g, 40.0 mmol) was added dropwise 5.56 ml of triethylamine. After 5 minutes, there was added 2.68 g (10.0 mmol) of N-(3-bromopropyl)phthalimide and the mixture was refluxed for 33 hours. This was cooled to room temperature, then poured into 200 ml of saturated aqueous solution of sodium bicarbonate and extracted with chloroform. The organic layer was separated and was washed with water and dried over magnesium sulfate. Chloroform was distilled off and the residue was purified by column chromatography on silica gel. Development with 30% hexane-chloroform resulted in elution of 1.03 g of N-(3-chloropropyl)phthalimide and further development with chloroform resulted in 1.21 g (yield: 53%) of white crystals of N-[3-(N-methoxy-N-methylamino)propyl]-phthalimide. the mixture was refluxed for 33 hours extracted with chloroform The organic layer was separated was washed with water dried over magnesium sulfate Chloroform was distilled off the residue was purified by column chromatography on silica gel

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

実験手順: By the procedure similar to that described in Example 24, 3-phenyl-5-chloroindazole (9.2 g), sodium hydride 50% pure (2.3 g) and phthalimidopropyl chloride (9.0 g) were treated to obtain 10.4 g of 1-phthalimidopropyl-3-phenyl-5-chloroindazole. Recrystallization from methanol gave a product having a melting point between 121°-122° C. were treated

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

実験手順: To a suspension of 50 mol of isopropanol containing N,O-dimethylhydroxylamine hydrochloride (3.97 g, 40.0 mmol) was added dropwise 5.56 ml of triethylamine. After 5 minutes, there was added 2.68 g (10.0 mmol) of N-(3-bromopropyl)phthalimide and the mixture was refluxed for 33 hours. This was cooled to room temperature, then poured into 200 ml of saturated aqueous solution of sodium bicarbonate and extracted with chloroform. The organic layer was separated and was washed with water and dried over magnesium sulfate. Chloroform was distilled off and the residue was purified by column chromatography on silica gel. Development with 30% hexane-chloroform resulted in elution of 1.03 g of N-(3-chloropropyl)phthalimide and further development with chloroform resulted in 1.21 g (yield: 53%) of white crystals of N-[3-(N-methoxy-N-methylamino)propyl]-phthalimide. the mixture was refluxed for 33 hours extracted with chloroform The organic layer was separated was washed with water dried over magnesium sulfate Chloroform was distilled off the residue was purified by column chromatography on silica gel