3-(4-bromo-3,5-dimethylphenyl)propan-1-ol

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

実験手順: To a cooled (0° C.) solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) and triethylamine (160 μL) in dichloromethane (2 mL) is added methanesulfonyl chloride (850 μL). The mixture is stirred for 12 hours at room temperature. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution and stirred vigorously for 30 minutes. The organic phase is separated, washed with brine and dried (MgSO4). The solvent is evaporated and the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50) to give the title compound. Yield: 235 mg; LC (method 8): tR=0.44 min; Mass spectrum (ESI+): m/z=343 [M+Na]+. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution stirred vigorously for 30 minutes The organic phase is separated washed with brine dried (MgSO4) The solvent is evaporated the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50)

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

実験手順: To a solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) in dichloromethane (5 mL) is added at 0° C. 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 2.7 mL of a 15% solution in dichloromethane). The mixture is stirred for 12 hours at room temperature, cooled to 0° C. and 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 1.6 mL of a 15% solution in dichloromethane) is added. After stirring for 4 hours isopropanol (5 mL) is added, the mixture is stirred for 15 minutes and the solvents are evaporated in vacuo. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30) to give the title compound. Yield: 120 mg; LC (method 8): tR=0.38 min; Mass spectrum (ESI−): m/z=239 [M−H]−. cooled to 0° C. is added the mixture is stirred for 15 minutes the solvents are evaporated in vacuo The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30)

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

実験手順: A solution of 5-allyl-2-bromo-1,3-dimethylbenzene (1.0 g) is cooled to 0° C., 9-borabicyclo[3.3.1]nonane (9-BBN, 26 mL of a 0.5 M solution in tetrahydrofurane) is added dropwise and the mixture is stirred for 2 hours at room temperature. After cooling to 0° C. NaOH (6.7 mL, 4 M) and H2O2 (6.7 mL, 35%) are added dropwise. The mixture is stirred for 12 hours while warming to room temperature. Then the mixture is partitioned between brine and diethylether. The organic phase is dried (MgSO4) and concentrated. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30) to give the title compound. Yield: 750 mg; LC (method 8): tR=0.28 min; Mass spectrum (ESI+): m/z=260 [M+NH4]+. After cooling to 0° C The mixture is stirred for 12 hours while warming to room temperature Then the mixture is partitioned between brine and diethylether The organic phase is dried (MgSO4) concentrated The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30)

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

実験手順: To a cooled (0° C.) solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) and triethylamine (160 μL) in dichloromethane (2 mL) is added methanesulfonyl chloride (850 μL). The mixture is stirred for 12 hours at room temperature. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution and stirred vigorously for 30 minutes. The organic phase is separated, washed with brine and dried (MgSO4). The solvent is evaporated and the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50) to give the title compound. Yield: 235 mg; LC (method 8): tR=0.44 min; Mass spectrum (ESI+): m/z=343 [M+Na]+. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution stirred vigorously for 30 minutes The organic phase is separated washed with brine dried (MgSO4) The solvent is evaporated the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50)

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

実験手順: To a solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) in dichloromethane (5 mL) is added at 0° C. 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 2.7 mL of a 15% solution in dichloromethane). The mixture is stirred for 12 hours at room temperature, cooled to 0° C. and 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 1.6 mL of a 15% solution in dichloromethane) is added. After stirring for 4 hours isopropanol (5 mL) is added, the mixture is stirred for 15 minutes and the solvents are evaporated in vacuo. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30) to give the title compound. Yield: 120 mg; LC (method 8): tR=0.38 min; Mass spectrum (ESI−): m/z=239 [M−H]−. cooled to 0° C. is added the mixture is stirred for 15 minutes the solvents are evaporated in vacuo The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30)

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

実験手順: A solution of 5-allyl-2-bromo-1,3-dimethylbenzene (1.0 g) is cooled to 0° C., 9-borabicyclo[3.3.1]nonane (9-BBN, 26 mL of a 0.5 M solution in tetrahydrofurane) is added dropwise and the mixture is stirred for 2 hours at room temperature. After cooling to 0° C. NaOH (6.7 mL, 4 M) and H2O2 (6.7 mL, 35%) are added dropwise. The mixture is stirred for 12 hours while warming to room temperature. Then the mixture is partitioned between brine and diethylether. The organic phase is dried (MgSO4) and concentrated. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30) to give the title compound. Yield: 750 mg; LC (method 8): tR=0.28 min; Mass spectrum (ESI+): m/z=260 [M+NH4]+. After cooling to 0° C The mixture is stirred for 12 hours while warming to room temperature Then the mixture is partitioned between brine and diethylether The organic phase is dried (MgSO4) concentrated The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30)

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

実験手順: To a cooled (0° C.) solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) and triethylamine (160 μL) in dichloromethane (2 mL) is added methanesulfonyl chloride (850 μL). The mixture is stirred for 12 hours at room temperature. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution and stirred vigorously for 30 minutes. The organic phase is separated, washed with brine and dried (MgSO4). The solvent is evaporated and the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50) to give the title compound. Yield: 235 mg; LC (method 8): tR=0.44 min; Mass spectrum (ESI+): m/z=343 [M+Na]+. The mixture is partitioned between dichloromethane and saturated aqueous NaHCO3 solution stirred vigorously for 30 minutes The organic phase is separated washed with brine dried (MgSO4) The solvent is evaporated the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 80:20→50:50)

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

実験手順: To a solution of 3-(4-bromo-3,5-dimethylphenyl)propan-1-ol (250 mg) in dichloromethane (5 mL) is added at 0° C. 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 2.7 mL of a 15% solution in dichloromethane). The mixture is stirred for 12 hours at room temperature, cooled to 0° C. and 1,1-dihydro-1,1,1-triacetoxy-1,2-benziodoxol-3(1H)-on (Dess-Martin periodinan, 1.6 mL of a 15% solution in dichloromethane) is added. After stirring for 4 hours isopropanol (5 mL) is added, the mixture is stirred for 15 minutes and the solvents are evaporated in vacuo. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30) to give the title compound. Yield: 120 mg; LC (method 8): tR=0.38 min; Mass spectrum (ESI−): m/z=239 [M−H]−. cooled to 0° C. is added the mixture is stirred for 15 minutes the solvents are evaporated in vacuo The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 99:1→70:30)

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

実験手順: A solution of 5-allyl-2-bromo-1,3-dimethylbenzene (1.0 g) is cooled to 0° C., 9-borabicyclo[3.3.1]nonane (9-BBN, 26 mL of a 0.5 M solution in tetrahydrofurane) is added dropwise and the mixture is stirred for 2 hours at room temperature. After cooling to 0° C. NaOH (6.7 mL, 4 M) and H2O2 (6.7 mL, 35%) are added dropwise. The mixture is stirred for 12 hours while warming to room temperature. Then the mixture is partitioned between brine and diethylether. The organic phase is dried (MgSO4) and concentrated. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30) to give the title compound. Yield: 750 mg; LC (method 8): tR=0.28 min; Mass spectrum (ESI+): m/z=260 [M+NH4]+. After cooling to 0° C The mixture is stirred for 12 hours while warming to room temperature Then the mixture is partitioned between brine and diethylether The organic phase is dried (MgSO4) concentrated The residue is chromatographed on silica gel (cyclohexane/ethyl acetate 95:5→70:30)