1-bromo-3-chloro-5-(trifluoromethyl)benzene

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: In a solution of 2.60 g of 3-bromo-5-chlorobenzotrifluoride and 1.2 mL of tert-butylmethyl ether in 25 mL of hexane, 6.38 mL of n-butyl lithium (1.6M hexane solution) was added dropwise at −10° C. with stirring, and stirred at the same temperature for 30 minutes. Then, a solution of 1.09 g of trimethoxyborane in 10 mL of tetrahydrofuran was added dropwise. After the completion of the addition dropwise, it was stirred at the same temperature further for 10 minutes and then the temperature was raised to room temperature. Then, in the reaction mixture, 2.60 g of 2-bromo-3,3,3-trifluoropropene, 2.76 g of potassium carbonate, 15 mL of water and 0.0065 g of 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ilidene (1,4-naphthoquinone) palladium (0) dimmer were added, and stirred under nitrogen atmosphere at 60° C. for 6 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, and the organic phase was collected and the aqueous phase was extracted with 30 mL of ethyl acetate twice. stirred at the same temperature for 30 minutes After the completion of the addition dropwise it was stirred at the same temperature further for 10 minutes stirred under nitrogen atmosphere at 60° C. for 6 hours After the completion of the reaction the reaction mixture was left cooled to room temperature insoluble material was filtered off the organic phase was collected the aqueous phase was extracted with 30 mL of ethyl acetate twice

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

実験手順: In a solution of 2.60 g of 3-bromo-5-chlorobenzotrifluoride and 1.2 mL of tert-butylmethyl ether in 25 mL of hexane, 6.38 mL of n-butyl lithium (1.6M hexane solution) was added dropwise at −10° C. with stirring, and stirred at the same temperature for 30 minutes. Then, a solution of 1.09 g of trimethoxyborane in 10 mL of tetrahydrofuran was added dropwise. After the completion of the addition dropwise, it was stirred at the same temperature further for 10 minutes and then the temperature was raised to room temperature. Then, in the reaction mixture, 2.60 g of 2-bromo-3,3,3-trifluoropropene, 2.76 g of potassium carbonate, 15 mL of water and 0.0065 g of 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ilidene (1,4-naphthoquinone) palladium (0) dimmer were added, and stirred under nitrogen atmosphere at 60° C. for 6 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, and the organic phase was collected and the aqueous phase was extracted with 30 mL of ethyl acetate twice. The combined organic phases were washed with water, and dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with hexane to obtain 1.50 g of the aimed product as orange oily substance. stirred at the same temperature for 30 minutes After the completion of the addition dropwise it was stirred at the same temperature further for 10 minutes stirred under nitrogen atmosphere at 60° C. for 6 hours After the completion of the reaction the reaction mixture was left cooled to room temperature insoluble material was filtered off the organic phase was collected the aqueous phase was extracted with 30 mL of ethyl acetate twice The combined organic phases were washed with water dried over saturated sodium chloride aqueous solution anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure The residue was purified with silica gel column chromatography that

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: A solution of 1-bromo-3-chloro-5-(trifluoromethyl)benzene (5.0 g), 3-hydroxypyrrolidine (1.85 g), palladium(II) acetate (217 mg), (±)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (1.2 g) and cesium carbonate (18.8 g) in toluene (96 mL) was stirred under an argon gas atmosphere at 85° C. for 16 hr. After cooling to room temperature, water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate 80:20-10:90) to give the title compound (4.11 g, yield 80%) as a brown oil. the mixture was extracted with ethyl acetate The organic layer was washed with saturated brine dried over anhydrous magnesium sulfate filtered The filtrate was concentrated the residue was purified by silica gel column chromatography (hexane/ethyl acetate 80:20-10:90)

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

実験手順: In a solution of 2.60 g of 3-bromo-5-chlorobenzotrifluoride and 1.2 mL of tert-butylmethyl ether in 25 mL of hexane, 6.38 mL of n-butyl lithium (1.6M hexane solution) was added dropwise at −10° C. with stirring, and stirred at the same temperature for 30 minutes. Then, a solution of 1.09 g of trimethoxyborane in 10 mL of tetrahydrofuran was added dropwise. After the completion of the addition dropwise, it was stirred at the same temperature further for 10 minutes and then the temperature was raised to room temperature. Then, in the reaction mixture, 2.60 g of 2-bromo-3,3,3-trifluoropropene, 2.76 g of potassium carbonate, 15 mL of water and 0.0065 g of 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ilidene (1,4-naphthoquinone) palladium (0) dimmer were added, and stirred under nitrogen atmosphere at 60° C. for 6 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, and the organic phase was collected and the aqueous phase was extracted with 30 mL of ethyl acetate twice. The combined organic phases were washed with water, and dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with hexane to obtain 1.50 g of the aimed product as orange oily substance. stirred at the same temperature for 30 minutes After the completion of the addition dropwise it was stirred at the same temperature further for 10 minutes stirred under nitrogen atmosphere at 60° C. for 6 hours After the completion of the reaction the reaction mixture was left cooled to room temperature insoluble material was filtered off the organic phase was collected the aqueous phase was extracted with 30 mL of ethyl acetate twice The combined organic phases were washed with water dried over saturated sodium chloride aqueous solution anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure The residue was purified with silica gel column chromatography that

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

実験手順: In a solution of 2.60 g of 3-bromo-5-chlorobenzotrifluoride and 1.2 mL of tert-butylmethyl ether in 25 mL of hexane, 6.38 mL of n-butyl lithium (1.6M hexane solution) was added dropwise at −10° C. with stirring, and stirred at the same temperature for 30 minutes. Then, a solution of 1.09 g of trimethoxyborane in 10 mL of tetrahydrofuran was added dropwise. After the completion of the addition dropwise, it was stirred at the same temperature further for 10 minutes and then the temperature was raised to room temperature. Then, in the reaction mixture, 2.60 g of 2-bromo-3,3,3-trifluoropropene, 2.76 g of potassium carbonate, 15 mL of water and 0.0065 g of 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ilidene (1,4-naphthoquinone) palladium (0) dimmer were added, and stirred under nitrogen atmosphere at 60° C. for 6 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, and the organic phase was collected and the aqueous phase was extracted with 30 mL of ethyl acetate twice. stirred at the same temperature for 30 minutes After the completion of the addition dropwise it was stirred at the same temperature further for 10 minutes stirred under nitrogen atmosphere at 60° C. for 6 hours After the completion of the reaction the reaction mixture was left cooled to room temperature insoluble material was filtered off the organic phase was collected the aqueous phase was extracted with 30 mL of ethyl acetate twice

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

実験手順: In a solution of 2.60 g of 3-bromo-5-chlorobenzotrifluoride and 1.2 mL of tert-butylmethyl ether in 25 mL of hexane, 6.38 mL of n-butyl lithium (1.6M hexane solution) was added dropwise at −10° C. with stirring, and stirred at the same temperature for 30 minutes. Then, a solution of 1.09 g of trimethoxyborane in 10 mL of tetrahydrofuran was added dropwise. After the completion of the addition dropwise, it was stirred at the same temperature further for 10 minutes and then the temperature was raised to room temperature. Then, in the reaction mixture, 2.60 g of 2-bromo-3,3,3-trifluoropropene, 2.76 g of potassium carbonate, 15 mL of water and 0.0065 g of 1,3-bis(2,6-diisopropylphenyl)imidazole-2-ilidene (1,4-naphthoquinone) palladium (0) dimmer were added, and stirred under nitrogen atmosphere at 60° C. for 6 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, insoluble material was filtered off, and the organic phase was collected and the aqueous phase was extracted with 30 mL of ethyl acetate twice. The combined organic phases were washed with water, and dehydrated with and dried over saturated sodium chloride aqueous solution and then anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with hexane to obtain 1.50 g of the aimed product as orange oily substance. stirred at the same temperature for 30 minutes After the completion of the addition dropwise it was stirred at the same temperature further for 10 minutes stirred under nitrogen atmosphere at 60° C. for 6 hours After the completion of the reaction the reaction mixture was left cooled to room temperature insoluble material was filtered off the organic phase was collected the aqueous phase was extracted with 30 mL of ethyl acetate twice The combined organic phases were washed with water dried over saturated sodium chloride aqueous solution anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure The residue was purified with silica gel column chromatography that