硼沙标准缓冲液(PH=9)

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: To a solution of thiosalicylic acid (500 mg) in ethanol (15 ml) and 2N sodium hydroxide aqueous solution (3.2 ml) was added 3-(9-fluorenylmethoxycarbonylamino)-propyl bromide at ambient temperature and the suspension was stirred for 2 hours. The resulting clear solution was diluted with water (20 ml) and acidified with 1N hydrochloric acid (6.5 ml). White crystals were collected by filtration and the solid was washed with ethanol-water (1:3, 15 ml) and then with n-hexane - diethyl and either (2:1, 15 ml) to give 2-[3-(9-fluorenylmethoxycarbonylamino)-propylthio]benzoic acid (1.07 g). White crystals were collected by filtration the solid was washed with ethanol-water (1:3, 15 ml)

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

实验步骤: To a solution of 3-bromopropylamine hydrobromide (5.0 g) and diisopropylethylamine (5.90 g) in dichloromethane (80 ml) was added portionwise 9-fluorenylmethoxycarbonyl chloride (5.91 g) and the mixture was stirred at ambient temperature for 3 hours and stand overnight. The resulting mixture was diluted with dichloromethane (50 ml) and the organic layer was washed successively with 1N hydrochloric acid and brine. Drying, filtering and removal of solvents afforded a crude product. The crude product was triturated with diethyl ether-hexane (1:5) to give 3-(9-fluorenylmethoxycarbonylamino)propyl bromide (7.82 g). stand overnight the organic layer was washed successively with 1N hydrochloric acid and brine Drying filtering removal of solvents afforded a crude product The crude product was triturated with diethyl ether-hexane (1:5)

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: To a solution of thiosalicylic acid (500 mg) in ethanol (15 ml) and 2N sodium hydroxide aqueous solution (3.2 ml) was added 3-(9-fluorenylmethoxycarbonylamino)-propyl bromide at ambient temperature and the suspension was stirred for 2 hours. The resulting clear solution was diluted with water (20 ml) and acidified with 1N hydrochloric acid (6.5 ml). White crystals were collected by filtration and the solid was washed with ethanol-water (1:3, 15 ml) and then with n-hexane - diethyl and either (2:1, 15 ml) to give 2-[3-(9-fluorenylmethoxycarbonylamino)-propylthio]benzoic acid (1.07 g). White crystals were collected by filtration the solid was washed with ethanol-water (1:3, 15 ml)

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

实验步骤: To a solution of 3-bromopropylamine hydrobromide (5.0 g) and diisopropylethylamine (5.90 g) in dichloromethane (80 ml) was added portionwise 9-fluorenylmethoxycarbonyl chloride (5.91 g) and the mixture was stirred at ambient temperature for 3 hours and stand overnight. The resulting mixture was diluted with dichloromethane (50 ml) and the organic layer was washed successively with 1N hydrochloric acid and brine. Drying, filtering and removal of solvents afforded a crude product. The crude product was triturated with diethyl ether-hexane (1:5) to give 3-(9-fluorenylmethoxycarbonylamino)propyl bromide (7.82 g). stand overnight the organic layer was washed successively with 1N hydrochloric acid and brine Drying filtering removal of solvents afforded a crude product The crude product was triturated with diethyl ether-hexane (1:5)