聚 1,2-丙二醇

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution containing oxalyl chloride (5.45 mL) in dichloromethane (130 mL) was cooled to −78° C. under a nitrogen atmosphere. A solution containing dimethyl sulfoxide (4.85 mL) in dichloromethane (5 mL) was added dropwise to the reaction solution at the same temperature. After stirring at the same temperature for 10 minutes, a solution containing 3-allyloxy-propan-1-ol (4.99 g) in dichloromethane (5 mL) was added dropwise to the reaction solution. After stirring at the same temperature for one hour, triethylamine (20.4 mL) was added to the reaction solution. The cooling bath was removed. The reaction solution was warmed to room temperature and stirred at room temperature for one hour. Saturated aqueous ammonium chloride was added to the reaction solution, and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride and then dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was dissolved in ethanol (100 mL) and water (10 mL). Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature. The reaction solution was stirred at room temperature for 15 hours. Then, a saturated sodium chloride solution and ethyl acetate were added and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride again. The organic layer was dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain the title compound (5.5 g). was added dropwise to the reaction solution at the same temperature was added dropwise to the reaction solution After stirring at the same temperature for one hour The cooling bath was removed The reaction solution was warmed to room temperature stirred at room temperature for one hour Saturated aqueous ammonium chloride was added to the reaction solution the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was dissolved in ethanol (100 mL) Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature The reaction solution was stirred at room temperature for 15 hours Then, a saturated sodium chloride solution and ethyl acetate were added the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride again The organic layer was dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was purified by silica gel column chromatography

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution containing oxalyl chloride (5.45 mL) in dichloromethane (130 mL) was cooled to −78° C. under a nitrogen atmosphere. A solution containing dimethyl sulfoxide (4.85 mL) in dichloromethane (5 mL) was added dropwise to the reaction solution at the same temperature. After stirring at the same temperature for 10 minutes, a solution containing 3-allyloxy-propan-1-ol (4.99 g) in dichloromethane (5 mL) was added dropwise to the reaction solution. After stirring at the same temperature for one hour, triethylamine (20.4 mL) was added to the reaction solution. The cooling bath was removed. The reaction solution was warmed to room temperature and stirred at room temperature for one hour. Saturated aqueous ammonium chloride was added to the reaction solution, and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride and then dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was dissolved in ethanol (100 mL) and water (10 mL). Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature. The reaction solution was stirred at room temperature for 15 hours. Then, a saturated sodium chloride solution and ethyl acetate were added and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride again. The organic layer was dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain the title compound (5.5 g). was added dropwise to the reaction solution at the same temperature was added dropwise to the reaction solution After stirring at the same temperature for one hour The cooling bath was removed The reaction solution was warmed to room temperature stirred at room temperature for one hour Saturated aqueous ammonium chloride was added to the reaction solution the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was dissolved in ethanol (100 mL) Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature The reaction solution was stirred at room temperature for 15 hours Then, a saturated sodium chloride solution and ethyl acetate were added the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride again The organic layer was dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was purified by silica gel column chromatography

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution containing oxalyl chloride (5.45 mL) in dichloromethane (130 mL) was cooled to −78° C. under a nitrogen atmosphere. A solution containing dimethyl sulfoxide (4.85 mL) in dichloromethane (5 mL) was added dropwise to the reaction solution at the same temperature. After stirring at the same temperature for 10 minutes, a solution containing 3-allyloxy-propan-1-ol (4.99 g) in dichloromethane (5 mL) was added dropwise to the reaction solution. After stirring at the same temperature for one hour, triethylamine (20.4 mL) was added to the reaction solution. The cooling bath was removed. The reaction solution was warmed to room temperature and stirred at room temperature for one hour. Saturated aqueous ammonium chloride was added to the reaction solution, and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride and then dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was dissolved in ethanol (100 mL) and water (10 mL). Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature. The reaction solution was stirred at room temperature for 15 hours. Then, a saturated sodium chloride solution and ethyl acetate were added and the organic layer was separated. The organic layer was washed with saturated aqueous sodium chloride again. The organic layer was dried over anhydrous magnesium sulfate. The insoluble matter was separated by filtration and the filtrate was concentrated under reduced pressure. The residue was purified by silica gel column chromatography to obtain the title compound (5.5 g). was added dropwise to the reaction solution at the same temperature was added dropwise to the reaction solution After stirring at the same temperature for one hour The cooling bath was removed The reaction solution was warmed to room temperature stirred at room temperature for one hour Saturated aqueous ammonium chloride was added to the reaction solution the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was dissolved in ethanol (100 mL) Sodium acetate (12 g) and hydroxylamine sulfate (8.02 g) were added to the reaction solution at room temperature The reaction solution was stirred at room temperature for 15 hours Then, a saturated sodium chloride solution and ethyl acetate were added the organic layer was separated The organic layer was washed with saturated aqueous sodium chloride again The organic layer was dried over anhydrous magnesium sulfate The insoluble matter was separated by filtration the filtrate was concentrated under reduced pressure The residue was purified by silica gel column chromatography