4-bromo-2-propylphenol

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 100 ml acetone solution of 4-bromo-2-propylphenol 5.4 g (25.1 mol) and benzyl bromide 5.6 g (32.7 mmol) was added potassium carbonate 5.2 g (37.6 mmol). Resulting suspension was stirred under reflux temperature for overnight. Acetone was removed under reduced pressure, diluted with ethyl acetate and water. Organic phase was separated. Aqueous phase was extracted with ethyl acetate twice. The combined organic phases were dried over anhydrous sodium sulfate, filtered, concentrated, chromatographed on silica gel (hexanes: t-butyl methyl ether) to give 6.96 g of benzyl 4-bromo-2-propylphenyl ether as colorless oil. Resulting suspension under reflux temperature for overnight Acetone was removed under reduced pressure diluted with ethyl acetate and water Organic phase was separated Aqueous phase was extracted with ethyl acetate twice The combined organic phases were dried over anhydrous sodium sulfate filtered concentrated chromatographed on silica gel (hexanes: t-butyl methyl ether)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-propylphenol (3.0 g, 0.022 mol) was dissolved in CHCl3 (100 mL) and magnetically stirred at room temperature. To this solution was added a solution of Tetrabutyl ammonium tribromide (10.68 g, 0.022 mol) in CHCl3 (100 mL). The resulting yellow solution was allowed to stir at room temperature for 1 hour. The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL). The biphasic mixture was stirred for 15 min. The organics were separated and concentrated. The residue was dissolved in EtOAc (100 mL) and washed with water (2×100 mL) and brine (1×100 mL). The organics were dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes. The result was a yellow oil (4.54 g). to stir at room temperature for 1 hour The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL) The biphasic mixture was stirred for 15 min The organics were separated concentrated The residue was dissolved in EtOAc (100 mL) washed with water (2×100 mL) and brine (1×100 mL) The organics were dried over Na2SO4 filtered concentrated The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 100 ml acetone solution of 4-bromo-2-propylphenol 5.4 g (25.1 mmol) and benzyl bromide 5.6 g (32.7 mmol) was added potassium carbonate 5.2 g (37.6 mmo). Resulting suspension was stirred under reflux temperature for overnight. Acetone was removed under reduced pressure, diluted with ethyl acetate and water. Organic phase was separated. Aqueous phase was extracted with ethyl acetate twice. The combined organic phases were dried over anhydrous sodium sulfate, filtered, concentrated, chromatographed on silica gel (hexanes:t-butyl methyl ether) to give 6.96 g of benzyl 4-bromo-2-propylphenyl ether as colorless oil. Resulting suspension under reflux temperature for overnight Acetone was removed under reduced pressure diluted with ethyl acetate and water Organic phase was separated Aqueous phase was extracted with ethyl acetate twice The combined organic phases were dried over anhydrous sodium sulfate filtered concentrated chromatographed on silica gel (hexanes:t-butyl methyl ether)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 100 ml acetone solution of 4-bromo-2-propylphenol 5.4 g (25.1 mmol) and benzyl bromide 5.6 g (32.7 mmol) was added potassium carbonate 5.2 g (37.6 mmo). Resulting suspension was stirred under reflux temperature for overnight. Acetone was removed under reduced pressure, diluted with ethyl acetate and water. Organic phase was separated. Aqueous phase was extracted with ethyl acetate twice. The combined organic phases were dried over anhydrous sodium sulfate, filtered, concentrated, chromatographed on silica gel (hexanes:t-butyl methyl ether) to give 6.96 g of benzyl 4-bromo-2-propylphenyl ether as colorless oil. Resulting suspension under reflux temperature for overnight Acetone was removed under reduced pressure diluted with ethyl acetate and water Organic phase was separated Aqueous phase was extracted with ethyl acetate twice The combined organic phases were dried over anhydrous sodium sulfate filtered concentrated chromatographed on silica gel (hexanes:t-butyl methyl ether)

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-propylphenol (3.0 g, 0.022 mol) was dissolved in CHCl3 (100 mL) and magnetically stirred at room temperature. To this solution was added a solution of Tetrabutyl ammonium tribromide (10.68 g, 0.022 mol) in CHCl3 (100 mL). The resulting yellow solution was allowed to stir at room temperature for 1 hour. The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL). The biphasic mixture was stirred for 15 min. The organics were separated and concentrated. The residue was dissolved in EtOAc (100 mL) and washed with water (2×100 mL) and brine (1×100 mL). The organics were dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes. The result was a yellow oil (4.54 g). 1H NMR (CDCl3): δ 1.00 (t, J=8.10 Hz, 3H), 1.52 (m, 2H), 2.50 (t, J=4.56 Hz, 2H), 4.95 (s, 1H), 6.72 (d, J=2.07 Hz 1H)), 6.80 (s, 1H), 6.85 (d, J=2.07 Hz, 1H). to stir at room temperature for 1 hour The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL) The biphasic mixture was stirred for 15 min The organics were separated concentrated The residue was dissolved in EtOAc (100 mL) washed with water (2×100 mL) and brine (1×100 mL) The organics were dried over Na2SO4 filtered concentrated The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 100 ml acetone solution of 4-bromo-2-propylphenol 5.4 g (25.1 mol) and benzyl bromide 5.6 g (32.7 mmol) was added potassium carbonate 5.2 g (37.6 mmol). Resulting suspension was stirred under reflux temperature for overnight. Acetone was removed under reduced pressure, diluted with ethyl acetate and water. Organic phase was separated. Aqueous phase was extracted with ethyl acetate twice. The combined organic phases were dried over anhydrous sodium sulfate, filtered, concentrated, chromatographed on silica gel (hexanes: t-butyl methyl ether) to give 6.96 g of benzyl 4-bromo-2-propylphenyl ether as colorless oil. Resulting suspension under reflux temperature for overnight Acetone was removed under reduced pressure diluted with ethyl acetate and water Organic phase was separated Aqueous phase was extracted with ethyl acetate twice The combined organic phases were dried over anhydrous sodium sulfate filtered concentrated chromatographed on silica gel (hexanes: t-butyl methyl ether)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-propylphenol (3.0 g, 0.022 mol) was dissolved in CHCl3 (100 mL) and magnetically stirred at room temperature. To this solution was added a solution of Tetrabutyl ammonium tribromide (10.68 g, 0.022 mol) in CHCl3 (100 mL). The resulting yellow solution was allowed to stir at room temperature for 1 hour. The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL). The biphasic mixture was stirred for 15 min. The organics were separated and concentrated. The residue was dissolved in EtOAc (100 mL) and washed with water (2×100 mL) and brine (1×100 mL). The organics were dried over Na2SO4, filtered and concentrated. The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes. The result was a yellow oil (4.54 g). to stir at room temperature for 1 hour The reaction was quenched with a 5% solution of sodium thiosulfate (200 mL) The biphasic mixture was stirred for 15 min The organics were separated concentrated The residue was dissolved in EtOAc (100 mL) washed with water (2×100 mL) and brine (1×100 mL) The organics were dried over Na2SO4 filtered concentrated The residue was purified by flash chromatography (silica gel) eluting with 3% EtOAc in Hexanes

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 100 ml acetone solution of 4-bromo-2-propylphenol 5.4 g (25.1 mmol) and benzyl bromide 5.6 g (32.7 mmol) was added potassium carbonate 5.2 g (37.6 mmo). Resulting suspension was stirred under reflux temperature for overnight. Acetone was removed under reduced pressure, diluted with ethyl acetate and water. Organic phase was separated. Aqueous phase was extracted with ethyl acetate twice. The combined organic phases were dried over anhydrous sodium sulfate, filtered, concentrated, chromatographed on silica gel (hexanes:t-butyl methyl ether) to give 6.96 g of benzyl 4-bromo-2-propylphenyl ether as colorless oil. Resulting suspension under reflux temperature for overnight Acetone was removed under reduced pressure diluted with ethyl acetate and water Organic phase was separated Aqueous phase was extracted with ethyl acetate twice The combined organic phases were dried over anhydrous sodium sulfate filtered concentrated chromatographed on silica gel (hexanes:t-butyl methyl ether)