2,6-DIBROMOANISOLE

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a THF solution of 2,6-dibromoanisole (10 g, 37.6 mmol) was added Mg (0.90 g, 37.6 mmol), and the mixture was heated and stirred at 40° C. Under ice-cooling, n-heptanal (47.2 g, 41.3 mmol) was added dropwise. Aqueous hydrochloric acid solution was added to the reaction mixture, this was extracted with ethyl acetate, and the solvent was distilled off to obtain 8.95 g of a compound (1). the mixture was heated Under ice-cooling this was extracted with ethyl acetate the solvent was distilled off

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

実験手順: A mixture of phenylboronic acid (3.4 g, 28.7 mmol), 2,6-dibromoanisole (22.3 g, 83.8 mmol, 3 equiv.) and palladium tetrakistriphenylphosphine (0.6 g) in ethylene glycol dimethyl ether (50 mL) and a solution of potassium carbonate (10.8 g, 0.078 mol) in water (50 mL) were kept at reflux under nitrogen with good stirring overnight. After cooling, the reaction mixture was partitioned between ethyl acetate (800 mL) and water (400 mL). The organic phase was washed with water (2×400 mL), dried over sodium sulfate and filtered. The solvent was removed in vacuo and the residue was chromatographed on silica (360 g) with heptane (5 L) to afford 6.55 g of pure product (87%). at reflux under nitrogen After cooling the reaction mixture was partitioned between ethyl acetate (800 mL) and water (400 mL) The organic phase was washed with water (2×400 mL) dried over sodium sulfate filtered The solvent was removed in vacuo the residue was chromatographed on silica (360 g) with heptane (5 L)

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

実験手順: A mixture of 2,6-dibromophenol (25 g, 0.099 mol), powder potassium carbonate (28 g, 0.2 mol, 2 equiv) and dimethyl sulfate (12.6 g, 0.099 mol) in acetonitrile (400 mL) was kept at reflux with good stirring for 4 hr. After cooling, the solids were removed by filtration and the solvent was removed in a rotary evaporator. The residue was taken in 2:1 heptane/ethyl acetate mixture (800 mL) and washed with water (2×400 mL). The organic layer was dried over sodium sulfate, filtered and the solvent was removed in a rotary evaporator, leaving almost pure 1 (15.5 g, 96%). at reflux After cooling the solids were removed by filtration the solvent was removed in a rotary evaporator washed with water (2×400 mL) The organic layer was dried over sodium sulfate filtered the solvent was removed in a rotary evaporator

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

実験手順: A mixture of 2,6-dibromophenol (25 g, 0.099 mol), powder potassium carbonate (28 g, 0.2 mol, 2 equiv) and dimethyl sulfate (12.6 g, 0.099 mol) in acetonitrile (400 mL) was kept at reflux with good stirring for 4 hr. After cooling, the solids were removed by filtration and the solvent was removed in a rotary evaporator. The residue was taken in 2:1 heptane/ethyl acetate mixture (800 mL) and washed with water (2×400 mL). The organic layer was dried over sodium sulfate, filtered and the solvent was removed in a rotary evaporator, leaving almost pure 1 (15.5 g, 96%). at reflux After cooling the solids were removed by filtration the solvent was removed in a rotary evaporator washed with water (2×400 mL) The organic layer was dried over sodium sulfate filtered the solvent was removed in a rotary evaporator

反応条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a THF solution of 2,6-dibromoanisole (10 g, 37.6 mmol) was added Mg (0.90 g, 37.6 mmol), and the mixture was heated and stirred at 40° C. Under ice-cooling, n-heptanal (47.2 g, 41.3 mmol) was added dropwise. Aqueous hydrochloric acid solution was added to the reaction mixture, this was extracted with ethyl acetate, and the solvent was distilled off to obtain 8.95 g of a compound (1). the mixture was heated Under ice-cooling this was extracted with ethyl acetate the solvent was distilled off

反応条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a THF solution of 2,6-dibromoanisole (10 g, 37.6 mmol) was added Mg (0.90 g, 37.6 mmol), and the mixture was heated and stirred at 40° C. Under ice-cooling, n-heptanal (47.2 g, 41.3 mmol) was added dropwise. Aqueous hydrochloric acid solution was added to the reaction mixture, this was extracted with ethyl acetate, and the solvent was distilled off to obtain 8.95 g of a compound (1). the mixture was heated Under ice-cooling this was extracted with ethyl acetate the solvent was distilled off

反応条件: temp:40.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a THF solution of 2,6-dibromoanisole (10 g, 37.6 mmol) was added Mg (0.90 g, 37.6 mmol), and the mixture was heated and stirred at 40° C. Under ice-cooling, n-heptanal (47.2 g, 41.3 mmol) was added dropwise. Aqueous hydrochloric acid solution was added to the reaction mixture, this was extracted with ethyl acetate, and the solvent was distilled off to obtain 8.95 g of a compound (1). the mixture was heated Under ice-cooling this was extracted with ethyl acetate the solvent was distilled off

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir: