(E)-3-(4-溴苯基)丙烯酸甲酯

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a mixture of compound 66c (1.50 g, 6.22 mmol) and Pd(OAc)2 (90 mg, 0.40 mmol) in DCM (20 mL) was added an ethereal solution of compound 66b (200 mL). After stirring for 10 min at 0° C., the reaction mixture was concentrated under reduced pressure to yield a residue, which was subjected to flash column chromatography on silica gel (10% EtOAc/petroleum ether) to afford compound 66d as colorless oil. Mass Spectrum (GCMS, ESI pos.): Calcd. for C11H11BrO2: 254.0 (M). found: 254.0. the reaction mixture was concentrated under reduced pressure to yield a residue, which

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a mixture of compound 66c (1.50 g, 6.22 mmol) and Pd(OAc)2 (90 mg, 0.40 mmol) in DCM (20 mL) was added an ethereal solution of compound 66b (200 mL). After stirring for 10 min at 0° C., the reaction mixture was concentrated under reduced pressure to yield a residue, which was subjected to flash column chromatography on silica gel (10% EtOAc/petroleum ether) to afford compound 66d as colorless oil. Mass Spectrum (GCMS, ESI pos.): Calcd. for C11H11BrO2: 254.0 (M). found: 254.0. the reaction mixture was concentrated under reduced pressure to yield a residue, which

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

实验步骤: To a stirred solution of (2E)-3-(4-bromophenyl)prop-2-enoic acid (4.5 g, 0.020 mol) in MeOH (20 mL), sulfuryl dichloride (2.7 g, 0.023 mol) was added dropwise at 0° C. The resulting solution was heated to reflux for 1 h. The reaction mixture was allowed to cool to rt and concentrated to dryness under reduced pressure to yield a residue, which was subjected to flash column chromatography on silica gel (5-10% EtOAc/petroleum ether) to afford compound 66c as a colorless oil. Mass Spectrum (GCMS, ESI pos.): Calcd. for C10H9BrO2: 241.1 (M). found: 241.0. The resulting solution was heated to reflux for 1 h concentrated to dryness under reduced pressure to yield a residue, which

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

实验步骤: To a THF solution (0.5 M) of methyl (2E)-3-(4-bromophenyl)acrylate (1 eq.) was added, at 0° C., lithium aluminum hydride (1.0 M THF solution, 1 eq.) dropwise over a period of for 3 h. The reaction mixture was then warmed slowly to RT over 1 h. At 0° C., the reaction was carefully quenched with freshly-deoxygenated H2O. The organic layer was separated and washed with cold 10% aq. HCl. The aqueous washes were combined and back-extracted with ether. The organic extracts were then washed further with sat. aq. NaHCO3 and brine, dried over MgSO4, filtered and the filtrate concentrated in vacuo to reveal a yellow oil. Purification by way of full vacuum distillation afforded the title compound as a colorless oil. At 0° C., the reaction was carefully quenched with freshly-deoxygenated H2O The organic layer was separated washed with cold 10% aq. HCl back-extracted with ether The organic extracts were then washed further with sat. aq. NaHCO3 and brine dried over MgSO4 filtered the filtrate concentrated in vacuo Purification by way of full vacuum distillation

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

实验步骤: To a THF solution (0.5 M) of methyl (2E)-3-(4-bromophenyl)acrylate (1 eq.) was added, at 0° C., lithium aluminum hydride (1.0 M THF solution, 1 eq.) dropwise over a period of for 3 h. The reaction mixture was then warmed slowly to RT over 1 h. At 0° C., the reaction was carefully quenched with freshly-deoxygenated H2O. The organic layer was separated and washed with cold 10% aq. HCl. The aqueous washes were combined and back-extracted with ether. The organic extracts were then washed further with sat. aq. NaHCO3 and brine, dried over MgSO4, filtered and the filtrate concentrated in vacuo to reveal a yellow oil. Purification by way of full vacuum distillation afforded the title compound as a colorless oil. At 0° C., the reaction was carefully quenched with freshly-deoxygenated H2O The organic layer was separated washed with cold 10% aq. HCl back-extracted with ether The organic extracts were then washed further with sat. aq. NaHCO3 and brine dried over MgSO4 filtered the filtrate concentrated in vacuo Purification by way of full vacuum distillation

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL), thionyl chloride (30 mL) was added at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature, the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL), thionyl chloride (30 mL) was added at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature, the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL), thionyl chloride (30 mL) was added at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature, the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL), thionyl chloride (30 mL) was added at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature, the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL), thionyl chloride (30 mL) was added at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature, the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL) was added thionyl chloride (30 mL) at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness

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

实验步骤: To a stirred solution of 4-bromocinnamic acid (16 g) in methanol (150 mL) was added thionyl chloride (30 mL) at 0° C. The reaction mixture was warmed to room temperature and refluxed for 3 hours. After cooling to room temperature the solvents were evaporated to dryness. The crude compound obtained was used as such for the next step. refluxed for 3 hours After cooling to room temperature the solvents were evaporated to dryness