3-(4-氯苯氧基)丁-2-one

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 3-(4-chlorophenoxy)-2-butanone (34.50 g) and N,N-dimethylformamide dimethylacetal (20.70 g) was heated under argon in an oil bath at 120° C. for 13 hours. The methanol produced in the reaction was removed under reduced pressure and the residual oil was triturated with n-hexane. The solid was collected by filtration and washed with cold diethyl ether to give 4-(4-chlorophenoxy)-1-(dimethylamino)-1-penten-3-one. Yield 32.50 g. was removed under reduced pressure the residual oil was triturated with n-hexane The solid was collected by filtration washed with cold diethyl ether

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

实验步骤: 82 g of ammonium acetate and 6.7 g of sodium cyanoborohydride were added to a solution containing 21 g of 3-(4-chlorophenoxy)-2-butanone dissolved in 500 mL of methanol, and the reaction mixture was stirred for 20 hours at room temperature. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue. The whole mixture was extracted with 300 mL of diethyl ether. The obtained water layer was alkalifled using a 5% aqueous solution of sodium hydroxide, and then extracted with 500 mL of ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. A fraction possessing a low boiling point was removed from the obtained oily products to afford 18 g (yield 86%) of the desired product. Refractive index: 1.5360. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue The whole mixture was extracted with 300 mL of diethyl ether extracted with 500 mL of ethyl acetate The organic layer was washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure was removed from the obtained oily products

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: 82 g of ammonium acetate and 6.7 g of sodium cyanoborohydride were added to a solution containing 21 g of 3-(4-chlorophenoxy)-2-butanone dissolved in 500 mL of methanol, and the reaction mixture was stirred for 20 hours at room temperature. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue. The whole mixture was extracted with 300 mL of diethyl ether. The obtained water layer was alkalifled using a 5% aqueous solution of sodium hydroxide, and then extracted with 500 mL of ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. A fraction possessing a low boiling point was removed from the obtained oily products to afford 18 g (yield 86%) of the desired product. Refractive index: 1.5360. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue The whole mixture was extracted with 300 mL of diethyl ether extracted with 500 mL of ethyl acetate The organic layer was washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure was removed from the obtained oily products

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

实验步骤: 82 g of ammonium acetate and 6.7 g of sodium cyanoborohydride were added to a solution containing 21 g of 3-(4-chlorophenoxy)-2-butanone dissolved in 500 ml of methanol, and the reaction mixture was stirred for 20 hours at room temperature. After the reaction mixture was concentrated under reduced pressure, 180 ml of concentrated hydrochloric acid, 100 ml of water, and 300 ml of diethyl ether were added to the residue. The obtained water layer was alkalified using a 5% aqueous solution of sodium hydroxide, and then the organic substances were extracted with 500 ml of ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. A fraction possessing a low boiling point was removed from the obtained oily products to afford 18 g (yield 86%) of the desired product. After the reaction mixture was concentrated under reduced pressure, 180 ml of concentrated hydrochloric acid, 100 ml of water, and 300 ml of diethyl ether were added to the residue the organic substances were extracted with 500 ml of ethyl acetate The organic layer was washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure was removed from the obtained oily products

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

实验步骤: 82 g of ammonium acetate and 6.7 g of sodium cyanoborohydridc were added to a solution containing 21 g of 3-(4-chlorophenoxy)-2-butanone dissolved in 500 mL of methanol, and the reaction mixture was stirred for 20 hours at room temperature. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue. The whole mixture was extracted with 300 mL of diethyl ether. The obtained water layer was alkalifled using a 5% aqueous solution of sodium hydroxide, and then extracted with 500 mL of ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulphate, and then concentrated under reduced pressure. A fraction possessing a low boiling point was removed from the obtained oily products to afford 18 g (yield 86%) of the desired product. Refractive index: 1.5360. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue The whole mixture was extracted with 300 mL of diethyl ether extracted with 500 mL of ethyl acetate The organic layer was washed with water dried over anhydrous magnesium sulphate concentrated under reduced pressure was removed from the obtained oily products

反应条件: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 3-(4-chlorophenoxy)-2-butanone (34.50 g) and N,N-dimethylformamide dimethylacetal (20.70 g) was heated under argon in an oil bath at 120° C. for 13 hours. The methanol produced in the reaction was removed under reduced pressure and the residual oil triturated with n-hexane. The solid was collected by filtration and washed with cold diethyl ether to give 4-(4-chlorophenoxy)-1-(dimethylamino)-1-penten-3-one. Yield 32.50 g. was removed under reduced pressure the residual oil triturated with n-hexane The solid was collected by filtration washed with cold diethyl ether

反应条件: temp:120.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A mixture of 3-(4-chlorophenoxy)-2-butanone (34.50 g) and N,N-dimethylformamide dimethylacetal (20.70 g) was heated under argon in an oil bath at 120° C. for 13 hours. The methanol produced in the reaction was removed under reduced pressure and the residual oil was triturated with n-hexane. The solid was collected by filtration and washed with cold diethyl ether to give 4-(4-chlorophenoxy)-1-(dimethylamino)-1-penten-3-one. Yield 32.50 g. was removed under reduced pressure the residual oil was triturated with n-hexane The solid was collected by filtration washed with cold diethyl ether

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

实验步骤: 82 g of ammonium acetate and 6.7 g of sodium cyanoborohydride were added to a solution containing 21 g of 3-(4-chlorophenoxy)-2-butanone dissolved in 500 mL of methanol, and the reaction mixture was stirred for 20 hours at room temperature. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue. The whole mixture was extracted with 300 mL of diethyl ether. The obtained water layer was alkalifled using a 5% aqueous solution of sodium hydroxide, and then extracted with 500 mL of ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. A fraction possessing a low boiling point was removed from the obtained oily products to afford 18 g (yield 86%) of the desired product. Refractive index: 1.5360. The reaction mixture was then concentrated under reduced pressure, and 180 mL of concentrated hydrochloric acid and 100 mL of water were added to the residue The whole mixture was extracted with 300 mL of diethyl ether extracted with 500 mL of ethyl acetate The organic layer was washed with water dried over anhydrous magnesium sulfate concentrated under reduced pressure was removed from the obtained oily products