2-乙烯基苄腈

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

实验步骤: A solution of N-benzyl-N-(methoxymethyl)-trimethylsilylmethylamine (16.62 g, 70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 mmol) and trifluoroacetic acid (0.57 g, 5.0 mmol) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to 15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water, and dried over anhydrous magnesium sulfate. Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as a pale yellow oil. The organic layer was decanted washed with water dried over anhydrous magnesium sulfate Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1)

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: Into a 100-mL round-bottom flask was placed 2-ethenylbenzonitrile (2.73 g, 21.14 mmol, 1.00 equiv), sodium bicarbonate (1.77 g, 21.07 mmol, 4.61 equiv), dichloromethane (20 mL) and water (20 mL). Then m-CPBA (10.9 g, 63.16 mmol, 2.25 equiv) was added at 0° C. in several batches. The resulting solution was stirred overnight at room temperature and then concentrated under vacuum. The residue was applied onto a silica gel column with PE/EA (50:1). Purification afforded 400 mg (13%) of 2-(oxiran-2-yl)benzonitrile as a yellow oil. Into a 100-mL round-bottom flask was placed concentrated under vacuum Purification

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

实验步骤: A solution of N-benzyl-N-(methoxymethyl)-trimethylsilylmethylamine (16.62 g, 70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 mmol) and trifluoroacetic acid (0.57 g, 5.0 mmol) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to 15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water, and dried over anhydrous magnesium sulfate. Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as a pale yellow oil. The organic layer was decanted washed with water dried over anhydrous magnesium sulfate Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1)

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: A solution of N-benzyl-N-(methoxymethyl)-trimethylsilylmethylamine (16.62 g, 70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 mmol) and trifluoroacetic acid (0.57 g, 5.0 mmol) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to 15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water, and dried over anhydrous magnesium sulfate. Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as a pale yellow oil. The organic layer was decanted washed with water dried over anhydrous magnesium sulfate Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1)

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

实验步骤: A solution of N-benzyl-N-(methoxymethyl)trimethylsilylmethylamine (16.62 g, 70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 mmol) and trifluoroacetic acid (0.57 g, 5.0 mmol) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to 15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water, and dried over anhydrous magnesium sulfate. Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as a pale yellow oil. The organic layer was decanted washed with water dried over anhydrous magnesium sulfate Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanesethyl acetate 5:1)

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

实验步骤: A solution of N-benzyl-N-(methoxymethyl)trimethylsilylmethylamine (16.62 g,70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 retool) and trifluoroacetic acid (0.57 g, 5.0 retool) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water,and dried over anhydrous magnesium sulfate. Filtration and concentration ofthe solution provided an orange oil which was chromatographed (silica-gel, hexanes-ethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as apale yellow oil. 1H-NMR (300 MHz, CDCl3): δ=1.80-1.92 (1H,m), 2.43-2.55 (1H, m), 2.63-2.75 (2H, m), 2.88-2.96 (2H, m), 3.71 (2H, AB quartet, JAB =13.0 Hz), 3.78-3.86 (1H, m), 7.25-7.41 (6H, m), 7.53-7.66 (3H, m). The organic layer was decanted washed with water,and dried over anhydrous magnesium sulfate Filtration and concentration ofthe solution provided an orange oil which was chromatographed (silica-gel, hexanes-ethyl acetate 5:1)

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

实验步骤: A solution of N-benzyl-N-(methoxymethyl)trimethylsilylmethylamine (16.62 g, 70.0 mmol) in dichloromethane (15 mL) are added dropwise, over a 45-minute period, to a solution of 2-ethenylbenzonitrile (6.00 g, 46.0 mmol) and trifluoroacetic acid (0.57 g, 5.0 mmol) in dichloromethane (55 mL). The resulting solution was stirred at room temperature for an additional 10 to 15 minutes, and then heated with saturated aqueous sodium bicarbonate solution (ca 10-15 mL). The organic layer was decanted, washed with water, and dried over anhydrous magnesium sulfate. Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanes-ethyl acetate 5:1) to afford the title compound (6.95 g, 58%) as a pale yellow oil. The organic layer was decanted washed with water dried over anhydrous magnesium sulfate Filtration and concentration of the solution provided an orange oil which was chromatographed (silica-gel, hexanes-ethyl acetate 5:1)

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

实验步骤: Into a 100-mL round-bottom flask was placed 2-ethenylbenzonitrile (2.73 g, 21.14 mmol, 1.00 equiv), sodium bicarbonate (1.77 g, 21.07 mmol, 4.61 equiv), dichloromethane (20 mL) and water (20 mL). Then m-CPBA (10.9 g, 63.16 mmol, 2.25 equiv) was added at 0° C. in several batches. The resulting solution was stirred overnight at room temperature and then concentrated under vacuum. The residue was applied onto a silica gel column with PE/EA (50:1). Purification afforded 400 mg (13%) of 2-(oxiran-2-yl)benzonitrile as a yellow oil. Into a 100-mL round-bottom flask was placed concentrated under vacuum Purification

反应条件: temp:0.00; pressure:0.00; stir: