2,6-二氟-4-甲氧基苯基乙腈

反应条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Solid sodium ethoxide (4.7 g, 66 mmol) was stirred in a mixture of xylene (20 mL) and ethanol (10 mL) and heated to 50° C. A solution of 2,6-difluoro-4-methoxybenzeneacetonitrile (i.e. the product of Step A) (8.0 g, 44 mmol) in ethyl acetate (10.4 mL) was added dropwise. The reaction mixture was heated at 50° C. for 4 h and then allowed to cool to ambient temperature. The reaction mixture was poured into water (100 mL) and extracted with ethyl acetate (25 mL). The aqueous phase was acidified with 3 N aqueous HCl to pH 4 and extracted with ethyl acetate (100 mL). This organic phase was washed with water (50 mL), brine (50 mL), then dried over MgSO4, and concentrated to leave the title compound as a tan semisolid (8.0 g). The reaction mixture was heated at 50° C. for 4 h to cool to ambient temperature extracted with ethyl acetate (25 mL) extracted with ethyl acetate (100 mL) This organic phase was washed with water (50 mL), brine (50 mL) dried over MgSO4 concentrated

反应条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Solid sodium ethoxide (4.7 g, 66 mmol) was stirred in a mixture of xylene (20 mL) and ethanol (10 mL) and heated to 50° C. A solution of 2,6-difluoro-4-methoxybenzeneacetonitrile (i.e. the product of Step A) (8.0 g, 44 mmol) in ethyl acetate (10.4 mL) was added dropwise. The reaction mixture was heated at 50° C. for 4 h and then allowed to cool to ambient temperature. The reaction mixture was poured into water (100 mL) and extracted with ethyl acetate (25 mL). The aqueous phase was acidified with 3 N aqueous HCl to pH 4 and extracted with ethyl acetate (100 mL). This organic phase was washed with water (50 mL), brine (50 mL), then dried over MgSO4, and concentrated to leave the title compound as a tan semisolid (8.0 g). The reaction mixture was heated at 50° C. for 4 h to cool to ambient temperature extracted with ethyl acetate (25 mL) extracted with ethyl acetate (100 mL) This organic phase was washed with water (50 mL), brine (50 mL) dried over MgSO4 concentrated

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

实验步骤: A solution of KCN (0.88 g, 13 mmol) dissolved in water (2 mL) was added dropwise to a water-bath-cooled solution of 2,6-difluoro-4-methoxybenzyl bromide (2.50 g, 10.5 mmol) in N,N-dimethylformamide (10 mL). The reaction mixture was stirred for 20 min. Water was added (20 mL) and then the reaction mixture was poured into saturated aqueous NaHCO3 solution (20 mL) and extracted with ether (50 mL). The organic phase was washed with water (5×25 mL), dried over MgSO4, and concentrated to give an oil, which crystallized on standing to provide the title compound as a white solid (1.9 g). extracted with ether (50 mL) The organic phase was washed with water (5×25 mL) dried over MgSO4 concentrated to give an oil, which crystallized

反应条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Solid sodium ethoxide (4.7 g, 66 mmol) was stirred in a mixture of xylene (20 mL) and ethanol (10 mL) and heated to 50° C. A solution of 2,6-difluoro-4-methoxybenzene-acetonitrile (i.e. the product of Step A) (8.0 g, 44 mmol) in ethyl acetate (10.4 mL) was added dropwise. The reaction mixture was heated at 50° C. for 4 h and then allowed to cool to ambient temperature. The reaction mixture was poured into water (100 mL) and extracted with ethyl acetate (25 mL). The aqueous phase was acidified with 3 N aqueous HCl to pH 4 and extracted with ethyl acetate (100 mL). This organic phase was washed with water (50 mL), brine (50 mL), then dried over MgSO4, and concentrated to leave the title compound as a tan semisolid (8.0 g). The reaction mixture was heated at 50° C. for 4 h to cool to ambient temperature extracted with ethyl acetate (25 mL) extracted with ethyl acetate (100 mL) This organic phase was washed with water (50 mL), brine (50 mL) dried over MgSO4 concentrated

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

实验步骤: A solution of KCN (0.88 g, 13 mmol) dissolved in water (2 mL) was added dropwise to a water-bath-cooled solution of 2,6-difluoro-4-methoxybenzyl bromide (2.50 g, 10.5 mmol) in N,N-dimethylformamide (10 mL). The reaction mixture was stirred for 20 min. Water was added (20 mL) and then the reaction mixture was poured into saturated aqueous NaHCO3 solution (20 mL) and extracted with ether (50 mL). The organic phase was washed with water (5×25 mL), dried over MgSO4, and concentrated to give an oil, which crystallized on standing to provide the title compound as a white solid (1.9 g). extracted with ether (50 mL) The organic phase was washed with water (5×25 mL) dried over MgSO4 concentrated to give an oil, which crystallized

反应条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Solid sodium ethoxide (4.7 g, 66 mmol) was stirred in a mixture of xylene (20 mL) and ethanol (10 mL) and heated to 50° C. A solution of 2,6-difluoro-4-methoxybenzeneacetonitrile (i.e. the product of Step A) (8.0 g, 44 mmol) in ethyl acetate (10.4 mL) was added dropwise. The reaction mixture was heated at 50° C. for 4 h and then allowed to cool to ambient temperature. The reaction mixture was poured into water (100 mL) and extracted with ethyl acetate (25 mL). The aqueous phase was acidified with 3 N aqueous HCl to pH 4 and extracted with ethyl acetate (100 mL). This organic phase was washed with water (50 mL), brine (50 mL), then dried over MgSO4, and concentrated to leave the title compound as a tan semisolid (8.0 g). The reaction mixture was heated at 50° C. for 4 h to cool to ambient temperature extracted with ethyl acetate (25 mL) extracted with ethyl acetate (100 mL) This organic phase was washed with water (50 mL), brine (50 mL) dried over MgSO4 concentrated

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

实验步骤: A solution of KCN (0.88 g, 13 mmol) dissolved in water (2 mL) was added dropwise to a water-bath-cooled solution of 2,6-difluoro-4-methoxybenzyl bromide (2.50 g, 10.5 mmol) in N,N-dimethylformamide (10 mL). The reaction mixture was stirred for 20 min. Water was added (20 mL) and then the reaction mixture was poured into saturated aqueous NaHCO3 solution (20 mL) and extracted with ether (50 mL). The organic phase was washed with water (5×25 mL), dried over MgSO4, and concentrated to give an oil, which crystallized on standing to provide the title compound as a white solid (1.9 g). extracted with ether (50 mL) The organic phase was washed with water (5×25 mL) dried over MgSO4 concentrated to give an oil, which crystallized