4-(3-羟丙基)-哌啶

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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 stirred mixture of methylene chloride (400 ml) and water (40 ml) are added dropwise benzyloxycarbonyl chloride (100 g) and a solution of 3-(4-piperidyl)propanol (84 g) and triethylamine (65 g) in methylene chloride (100 ml) for 45 minutes at room temperature. After addition is completed, stirring is continued for further 1 hour. The methylene chloride layer is separated, washed with water, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. Vacuum distillation of the oily residue is carried out to remove the low boiling material (50°-60° C./5 mmHg). 3-(1-Benzyloxycarbonyl-4-piperidyl)propanol (110 g) is obtained as a yellow oily residue. After addition The methylene chloride layer is separated washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure Vacuum distillation of the oily residue to remove the low boiling material (50°-60° C./5 mmHg)

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

实验步骤: To a stirred mixture of methylene chloride (400 ml) and water (40 ml) are added dropwise benzyloxycarbonyl chloride (100 g) and a solution of 3-(4-piperidyl)propanol (84 g) and triethylamine (65 g) in methylene chloride (100 ml) for 45 minutes at room temperature. After addition is completed, stirring is continued for further 1 hour. The methylene chloride layer is separated, washed with water, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. Vacuum distillation of the oily residue is carried out to remove the low boiling material (50°-60° C./5 mmHg). 3-(1-Benzyloxycarbonyl-4-piperidyl)propanol (110 g) is obtained as a yellow oily residue. After addition The methylene chloride layer is separated washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure Vacuum distillation of the oily residue to remove the low boiling material (50°-60° C./5 mmHg)

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

实验步骤: A solution of N-(2-carbamoylethyl)-4-cyanopyridinium chloride (2.1 g) in water (5 ml) was added dropwise to a stirred mixture of 4-hydroxypropylpiperidine (2.4 g), water (10 ml) and 2.5M sodium hydroxide solution (4.6 ml) cooled in an ice-bath. The mixture was stirred at 0°-5° C. for 1 hour. 2.5M sodium hydroxide solution (7 ml) was added and the mixture heated at reflux for 3 hours. The mixture was cooled in an ice-bath and gummy solid separated out. The aqueous layer was decanted off and the gummy solid dissolved in dichloromethane (75 ml). The solution was washed with saturated sodium chloride solution (10 ml) and dried (MgSO4). The solvent was removed by evaporation to give a gummy solid (880 mg) which on trituration with ether gave a solid; NMR(d6DMSO): 1.0-1.35(m,4H), 1.35-1.6(m,3H), 1.7(dd,2H), 2.70-2.88(dt,2H), 3.38(t,2H), 3.89(brd,2H), 4.35(brs,1H), 6.78(d,2H), 8.1(d,2H); mass spectrum(CI+): 221(M+H)+. cooled in an ice-bath the mixture heated at reflux for 3 hours The mixture was cooled in an ice-bath gummy solid separated out The aqueous layer was decanted off the gummy solid dissolved in dichloromethane (75 ml) The solution was washed with saturated sodium chloride solution (10 ml) dried (MgSO4) The solvent was removed by evaporation

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

实验步骤: A solution of N-(2-carbamoylethyl)-4-cyanopyridinium chloride (2.1 g) in water (5 ml) was added dropwise to a stirred mixture of 4-hydroxypropylpiperidine (2.4 g), water (10 ml) and 2.5M sodium hydroxide solution (4.6 ml) cooled in an ice-bath. The mixture was stirred at 0°-5° C. for 1 hour. 2.5M sodium hydroxide solution (7 ml) was added and the mixture heated at reflux for 3 hours. The mixture was cooled in an ice-bath and gummy solid separated out. The aqueous layer was decanted off and the gummy solid dissolved in dichloromethane (75 ml). The solution was washed with saturated sodium chloride solution (10 ml) and dried (MgSO4). The solvent was removed by evaporation to give a gummy solid (880 mg) which on trituration with ether gave a solid; NMR(d6DMSO): 1.0-1.35(m,4H), 1.35-1.6(m,3H), 1.7(dd,2H), 2.70-2.88(dt,2H), 3.38(t,2H), 3.89(brd,2H), 4.35(brs,1H), 6.78(d,2H), 8.1(d,2H); mass spectrum(CI+): 221(M+H)+. cooled in an ice-bath the mixture heated at reflux for 3 hours The mixture was cooled in an ice-bath gummy solid separated out The aqueous layer was decanted off the gummy solid dissolved in dichloromethane (75 ml) The solution was washed with saturated sodium chloride solution (10 ml) dried (MgSO4) The solvent was removed by evaporation

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of 6 g of di(tert-butyl)carbonate in 20 ml of dioxan was introduced into a solution of 3.2 g of 3-(4-piperidinyl)propanol in 50 ml of dioxan containing 25 ml of a 2N aqueous solution of sodium hydroxide, cooled at 0° C. The mixture was allowed to react for 16 hours at room temperature. The solution was then evaporated and the residue was extracted with ethylether. The organic layer was washed with a 10% solution of KHSO4 and then dried over MgSO4. to react for 16 hours at room temperature The solution was then evaporated the residue was extracted with ethylether The organic layer was washed with a 10% solution of KHSO4 dried over MgSO4

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

实验步骤: 3-(4-piperidinyl)propanol was prepared by hydrogenation of 3-(4-pyridyl)propanol in acetic acid in the presence of Pd/C according to the method described in J. Org. Chem., 1962, 27, 2966-2967.

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

实验步骤: 1-(4-Pyridyl)-1-propine-3-ol was hydrogenated with rhodium on alumina as catalyst.

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

实验步骤: To a stirred mixture of methylene chloride (400 ml) and water (40 ml) are added dropwise benzyloxycarbonyl chloride (100 g) and a solution of 3-(4-piperidyl)propanol (84 g) and triethylamine (65 g) in methylene chloride (100 ml) for 45 minutes at room temperature. After addition is completed, stirring is continued for further 1 hour. The methylene chloride layer is separated, washed with water, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. Vacuum distillation of the oily residue is carried out to remove the low boiling material (50°-60° C./5 mmHg). 3-(1-Benzyloxycarbonyl-4-piperidyl)propanol (110 g) is obtained as a yellow oily residue. After addition The methylene chloride layer is separated washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure Vacuum distillation of the oily residue to remove the low boiling material (50°-60° C./5 mmHg)