2-氟-4-氯-苄氯

反应条件: temp:0.00; pressure:0.00; stir:

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: Then, 18.5 g of 4-chloro-2-fluorobenzyl chloride was dissolved in a mixed solvent consisting of 130 ml of ethanol and 30 ml of water, to which 5.3 g of sodium cyanide was added, and the mixture was heated under reflux for 2 hours. After completion of the reaction, the reaction mixture was allowed to stand for cooling to room temperature, poured into water, and extracted with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried, and concentrated. The residue was subjected to silica gel column chromatography, which afforded 15.1 g of 4-chloro-2-fluorophenylacetonitrile. was added the mixture was heated under reflux for 2 hours After completion of the reaction extracted with ethyl acetate The organic layer was washed with saturated sodium chloride solution dried concentrated

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

实验步骤: Then, 16.5 g of 4-chloro-2-fluorobenzylalcohol was dissolved in 150 ml of tetrahydrofuran and 1 ml of pyridine, to which 10 ml of thionyl chloride was added dropwise at 5° C., and the mixture was stirred for 2⅚ hours. After completion of the reaction, the reaction mixture was concentrated, and the precipitated crystals were collected by filtration. The filtrate was subjected to silica gel column chromatography, which afforded 18.5 g of 4-chloro-2-fluorobenzyl chloride. After completion of the reaction the reaction mixture was concentrated the precipitated crystals were collected by filtration

反应条件: temp:0.00; pressure:0.00; stir:

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: Then, 18.5 g of 4-chloro-2-fluorobenzyl chloride was dissolved in a mixed solvent consisting of 130 ml of ethanol and 30 ml of water, to which 5.3 g of sodium cyanide was added, and the mixture was heated under reflux for 2 hours. After completion of the reaction, the reaction mixture was allowed to stand for cooling to room temperature, poured into water, and extracted with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried, and concentrated. The residue was subjected to silica gel column chromatography, which afforded 15.1 g of 4-chloro-2-fluorophenylacetonitrile. was added the mixture was heated under reflux for 2 hours After completion of the reaction extracted with ethyl acetate The organic layer was washed with saturated sodium chloride solution dried concentrated

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

实验步骤: Then, 16.5 g of 4-chloro-2-fluorobenzylalcohol was dissolved in 150 ml of tetrahydrofuran and 1 ml of pyridine, to which 10 ml of thionyl chloride was added dropwise at 5° C., and the mixture was stirred for 2.5/6 hours. After cormpletion of the reaction, the reaction mixture was concentrated, and the precipitated crystals were collected by filtration. The filtrate was subjected to silica gel column chromatography, which afforded 18.5 g of 4-chloro-2-fluorobenzyl chloride. 5/6 hours After cormpletion of the reaction the reaction mixture was concentrated the precipitated crystals were collected by filtration

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

实验步骤: Then, 16.5 g of 4-chloro-2-fluorobenzylalcohol was dissolved in 150 ml of tetrahydrofuran and 1 ml of pyridine, to which 10 ml of thionyl chloride was added dropwise at 5° C., and the mixture was stirred for 2⅚ hours. After completion of the reaction, the reaction mixture was concentrated, and the precipitated crystals were collected by filtration. The filtrate was subjected to silica gel column chromatography, which afforded 18.5 g of 4-chloro-2-fluorobenzyl chloride. After completion of the reaction the reaction mixture was concentrated the precipitated crystals were collected by filtration

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

实验步骤: Then, 18.5 g of 4-chloro-2-fluorobenzyl chloride was dissolved in a mixed solvent consisting of 130 ml of ethanol and 30 ml of water, to which 5.3 g of sodium cyanide was added, and the mixture was heated under reflux for 2 hours. After completion of the reaction, the reaction mixture was allowed to stand for cooling to room temperature, poured into water, and extracted with ethyl acetate. The organic layer was washed with saturated sodium chloride solution, dried, and concentrated. The residue was subjected to silica gel column chromatography, which afforded 15.1 g of 4-chloro-2-fluorophenylacetonitrile. was added the mixture was heated under reflux for 2 hours After completion of the reaction extracted with ethyl acetate The organic layer was washed with saturated sodium chloride solution dried concentrated