苄基 2-氯丙酸酯

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

实验步骤: Benzyl alcohol (242 mL, 253 g, 2.34 mol) and pyridine (204 mL, 204 g, 2.57 mol) were dissolved in methylene chloride (2.5 L) and cooled to 0° C. 2-Chloropropanoyl chloride (250 mL, 327 g, 2.57 mol) was added dropwise keeping the temperature between 00° C. and 5° C. After addition the mixture was allowed to warm to RT overnight. The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L), dried (MgSO4), filtered and concentrated in vacuo. The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride and filtered through a short path of silica gel. After concentration, the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.) affording the title compound as a pale yellow liquid (420 g, 90%). 1H-NMR: (CDCl3, 300 MHz): δ ppm 1.75 (d, 3H, CH3), 4.45 (q, 1H, CHCl), 5.25 (s, 2H, CH2Ar), 7.40 (m, 5H, ArH). 5° C After addition the mixture to warm to RT overnight The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L) dried (MgSO4) filtered concentrated in vacuo The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride filtered through a short path of silica gel After concentration the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.)

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

实验步骤: Benzyl alcohol (242 mL, 253 g, 2.34 mol) and pyridine (204 mL, 204 g, 2.57 mol) were dissolved in methylene chloride (2.5 L) and cooled to 0° C. 2-Chloropropanoyl chloride (250 mL, 327 g, 2.57 mol) was added dropwise keeping the temperature between 0° C. and 5° C. After addition the mixture was allowed to warm to RT overnight. The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L), dried (MgSO4), filtered and concentrated in vacuo. The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride and filtered through a short path of silica gel. After concentration, the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.) affording the title compound as a pale yellow liquid (420 g, 90%). 1H-NMR: (CDCl3, 300 MHz): δ ppm 1.75 (d, 3H, CH3), 4.45 (q, 1H, CHCl), 5.25 (s, 2H, CH2Ar), 7.40 (m, 5H, ArH). the temperature between 0° C. and 5° C After addition the mixture to warm to RT overnight The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L) dried (MgSO4) filtered concentrated in vacuo The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride filtered through a short path of silica gel After concentration the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.)

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

实验步骤: Benzyl alcohol (242 mL, 253 g, 2.34 mol) and pyridine (204 mL, 204 g, 2.57 mol) were dissolved in methylene chloride (2.5 L) and cooled to 0° C. 2-Chloropropanoyl chloride (250 mL, 327 g, 2.57 mol) was added dropwise keeping the temperature between 0° C. and 5° C. After addition the mixture was allowed to warm to RT overnight. The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L), dried (MgSO4), filtered and concentrated in vacuo. The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride and filtered through a short path of silica gel. After concentration, the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.) affording the title compound as a pale yellow liquid (420 g, 90%). 1H-NMR: (CDCl3, 300 MHz): δ ppm 1.75 (d, 3H, CH3), 4.45 (q, 1H, CHCl), 5.25 (s, 2H, CH2Ar), 7.40 (m, 5H, ArH). the temperature between 0° C. and 5° C After addition the mixture to warm to RT overnight The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L) dried (MgSO4) filtered concentrated in vacuo The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride filtered through a short path of silica gel After concentration the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.)

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

实验步骤: Benzyl alcohol (242 mL, 253 g, 2.34 mol) and pyridine (204 mL, 204 g, 2.57 mol) were dissolved in methylene chloride (2.5 L) and cooled to 0° C. 2-Chloropropanoyl chloride (250 mL, 327 g, 2.57 mol) was added dropwise keeping the temperature between 0° C. and 5° C. After addition the mixture was allowed to warm to RT overnight. The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L), dried (MgSO4), filtered and concentrated in vacuo. The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride and filtered through a short path of silica gel. After concentration, the crude was purified via bulb-to-bulb distillation (2*10-2 mbar, 90-95° C.) affording the title compound as a pale yellow liquid (420 g, 90%). 1H-NMR: (CDCl3, 300 MHz): δ ppm 1.75 (d, 3H, CH3), 4.45 (q, 1H, CHCl), 5.25 (s, 2H, CH2Ar), 7.40 (m, 5H, ArH). the temperature between 0° C. and 5° C After addition the mixture to warm to RT overnight The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L) dried (MgSO4) filtered concentrated in vacuo The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride filtered through a short path of silica gel After concentration the crude was purified via bulb-to-bulb distillation (2*10-2 mbar, 90-95° C.)

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

实验步骤: Benzyl alcohol (242 mL, 253 g, 2.34 mol) and pyridine (204 mL, 204 g, 2.57 mol) were dissolved in methylene chloride (2.5 L) and cooled to 0° C. 2-Chloropropanoyl chloride (250 mL, 327 g, 2.57 mol) was added dropwise keeping the temperature between 00° C. and 5° C. After addition the mixture was allowed to warm to RT overnight. The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L), dried (MgSO4), filtered and concentrated in vacuo. The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride and filtered through a short path of silica gel. After concentration, the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.) affording the title compound as a pale yellow liquid (420 g, 90%). 1H-NMR: (CDCl3, 300 MHz): δ ppm 1.75 (d, 3H, CH3), 4.45 (q, 1H, CHCl), 5.25 (s, 2H, CH2Ar), 7.40 (m, 5H, ArH). 5° C After addition the mixture to warm to RT overnight The mixture was washed with 20% aqueous citric acid (2.5 L), saturated aqueous NaHCO3 (2.5 L), brine (2.5 L) dried (MgSO4) filtered concentrated in vacuo The resulting brown liquid (450 g) was dissolved in a small amount of methylene chloride filtered through a short path of silica gel After concentration the crude was purified via bulb-to-bulb distillation (2*10−2 mbar, 90-95° C.)