1-(4-溴苯基)-3-(呋喃-2-基)丙-2-烯-1-one

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE:EA=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE:EA=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE:EA=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE:EA=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE:EA=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE:EA=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE:EA=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE:EA=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1)

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

实验步骤: To a solution of 4-bromophenylethanone (112.6 g, 570 mmol) and furan-2-carbaldehyde (58.5 g, 610 mmol) in methanol (1.5 L) was added CH3ONa (31 g, 570 mmol) over 10 min and the reaction solution was stirred at room temperature overnight. The reaction mixture was neutralized with conc. HCl to pH=7, and the solvent was removed under reduced pressure. To the resultant residue was added EA and water. The aqueous layer was extracted with EA for 3 times. The combined layers were washed with brine, dried over MgSO4, concentrated and purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1) to afford 1-(4-bromophenyl)-3-(furan-2-yl)prop-2-en-1-one (5A) as a yellow solid (90.2 g, 65%). the solvent was removed under reduced pressure To the resultant residue was added EA and water The aqueous layer was extracted with EA for 3 times The combined layers were washed with brine dried over MgSO4 concentrated purified by silica gel column chromatography (PE (petroleum ether): EA (ethyl acetate)=10:1)