3-[(2-Methoxyethoxy)methoxy]benzaldehyde

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 solution of 3-(2-methoxyethoxy-methoxy)-benzaldehyde (2.10 g, 10 mmol, example 8a) in THF (60 mL) is added methylamine (20 mL, 2M in THF) followed by palladium on carbon (210 mg, 10% Pd). The resulting mixture is stirred for 24 h under an atmosphere of hydrogen gas, then purged with nitrogen, filtered through celite and the filtrate concentrated. The residue is purified by flash chromatography (silica, 10% methanol in dichloromethane) to give the title compound as an oil. purged with nitrogen filtered through celite the filtrate concentrated The residue is purified by flash chromatography (silica, 10% methanol in dichloromethane)

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

实验步骤: To a cooled (−78° C.) suspension of triphenyl-(quinolin-2-yl-methyl)-phosphonium chloride (1.76 g, 4 mmol, example 17) in THF (24 mL) is added, dropwise, n-butyl lithium solution (1.7 mL, 2.5 M in hexanes). The resulting mixture is stirred for 30 min. then a solution of 3-[(2-methoxyethoxy)-methoxy]-benzaldehyde (756 mg, 3.6 mmol, example 8a) in THF (3 mL) is added. This mixture is stirred for 30 min then the cold bath removed and stirring continued for 2 h. The reaction mixture is then diluted with ethyl acetate, washed with sat. ammonium acetate solution and brine, dried over MgSO4 and concentrated. The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes) to give the title compound as an oil. MS (ESI) 336 (M+H)+. To a cooled is added This mixture is stirred for 30 min the cold bath removed stirring continued for 2 h The reaction mixture is then diluted with ethyl acetate washed with sat. ammonium acetate solution and brine dried over MgSO4 concentrated The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes)

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

实验步骤: To a cooled (−78° C.) suspension of triphenyl-(quinolin-2-yl-methyl)-phosphonium chloride (1.76 g, 4 mmol, example 17) in THF (24 mL) is added, dropwise, n-butyl lithium solution (1.7 mL, 2.5 M in hexanes). The resulting mixture is stirred for 30 min. then a solution of 3-[(2-methoxyethoxy)-methoxy]-benzaldehyde (756 mg, 3.6 mmol, example 8a) in THF (3 mL) is added. This mixture is stirred for 30 min then the cold bath removed and stirring continued for 2 h. The reaction mixture is then diluted with ethyl acetate, washed with sat. ammonium acetate solution and brine, dried over MgSO4 and concentrated. The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes) to give the title compound as an oil. MS (ESI) 336 (M+H)+. To a cooled is added This mixture is stirred for 30 min the cold bath removed stirring continued for 2 h The reaction mixture is then diluted with ethyl acetate washed with sat. ammonium acetate solution and brine dried over MgSO4 concentrated The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes)

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

实验步骤: The hydroxyl group of 3-hydroxybenzaldehyde (1.5 g) was protected by use of 2-methoxyethoxymethyl chloride (1.4 g) in accordance with (production process 1), to thereby produce 3-methoxyethoxymethoxybenzaldehyde (2.0 g, yield: 76%). The thus-produced 3-methoxyethoxymethoxybenzaldehyde (1.9 g) and 3,4-dimethoxybenzyl cyanide (1.6 g) were subjected to condensation in accordance with process A of (production process 2), to thereby yield a methoxyethoxymethoxy form (hereinafter will be referred to as an “MEM form”) of the target product. Subsequently, the protective group was removed from the MEM form in accordance with (production process 3), to thereby produce the target product (1.2 g, yield: 48%).

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-(2-methoxyethoxy-methoxy)-benzaldehyde (2.10 g, 10 mmol, example 8a) in THF (60 mL) is added methylamine (20 mL, 2M in THF) followed by palladium on carbon (210 mg, 10% Pd). The resulting mixture is stirred for 24 h under an atmosphere of hydrogen gas, then purged with nitrogen, filtered through celite and the filtrate concentrated. The residue is purified by flash chromatography (silica, 10% methanol in dichloromethane) to give the title compound as an oil. purged with nitrogen filtered through celite the filtrate concentrated The residue is purified by flash chromatography (silica, 10% methanol in dichloromethane)

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

实验步骤: To a cooled (−78° C.) suspension of triphenyl-(quinolin-2-yl-methyl)-phosphonium chloride (1.76 g, 4 mmol, example 17) in THF (24 mL) is added, dropwise, n-butyl lithium solution (1.7 mL, 2.5 M in hexanes). The resulting mixture is stirred for 30 min. then a solution of 3-[(2-methoxyethoxy)-methoxy]-benzaldehyde (756 mg, 3.6 mmol, example 8a) in THF (3 mL) is added. This mixture is stirred for 30 min then the cold bath removed and stirring continued for 2 h. The reaction mixture is then diluted with ethyl acetate, washed with sat. ammonium acetate solution and brine, dried over MgSO4 and concentrated. The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes) to give the title compound as an oil. MS (ESI) 336 (M+H)+. To a cooled is added This mixture is stirred for 30 min the cold bath removed stirring continued for 2 h The reaction mixture is then diluted with ethyl acetate washed with sat. ammonium acetate solution and brine dried over MgSO4 concentrated The residue is purified by flash chromatography (silica, 40% ethyl acetate in hexanes)