4-(羟基甲基)苯乙酮

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: A solution of 1-(4-hydroxymethyl-phenyl)-ethanone (750 mg, 5 mmol) in EtOH (15 ml) was added dropwise at 0° C. to a stirred solution of (E)-3-(5-formyl-pyridin-2-yl)-acrylic acid tert-butyl ester (described in Example 11 STEP A-D, 1.16 g, 5 mmol) and 1.7 M KOH (4.4 ml) in EtOH (10 ml). The mixture was stirred at 0° C. for 5 h and the resulting precipitate was filtered and triturated with di-isopropylether to give 630 mg of desired (E)-3-{5-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-pyridin-2-yl}-acrylic acid tert-butyl ester. The mother liquors were diluted with water and extracted with AcOEt. The organic layer was dried over Na2SO4 and evaporated in vacuo. The residue was triturated with EtOH to give additional 70 mg of (E)-3-{5-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-pyridin-2-yl}-acrylic acid tert-butyl ester. the resulting precipitate was filtered triturated with di-isopropylether

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

实验步骤: A mixture of 1-(4-hydroxymethyl-phenyl)-ethanone (1 g, 6.67 mmol), 4-formylcinnamic acid (1.17 g, 6.67 mmol) and 1.7 M KOH (5.89 ml) in EtOH (60 ml) was stirred at room temperature overnight. The resulting precipitate was filtered and washed with EtOH to give 1.39 g of (E)-3-{4-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-phenyl}-acrylic acid as its potassium salt. The resulting precipitate was filtered washed with EtOH

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

实验步骤: A mixture of 1-(4-hydroxymethyl-phenyl)-ethanone (1 g, 6.67 mmol), 4-formylcinnamic acid (1.17 g, 6.67 mmol) and 1.7 M KOH (5.89 ml) in EtOH (60 ml) was stirred at room temperature overnight. The resulting precipitate was filtered and washed with EtOH to give 1.39 g of (E)-3-{4-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-phenyl}-acrylic acid as its potassium salt. The resulting precipitate was filtered washed with EtOH

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

实验步骤: To 7.00 g (46.6 mmol) 1-(4-hydroxymethyl-phenyl)-ethanone in 100 mL THF is added 22.5 g (46.6 mmol) tetrabutylammonium-tribromide dissolved in MeOH/THF. The reaction mixture is stirred 1 h at RT and the solvent is evaporated. The residue is dissolved with water and tertbutylmethylether. The organic phase is washed eight times with water. The combined organic phase is dried over MgSO4, filtered and the solvent is evaporated. The residue is elutriated with diisopropylether and the precipitate is collected and dried. the solvent is evaporated The residue is dissolved with water and tertbutylmethylether The organic phase is washed eight times with water The combined organic phase is dried over MgSO4 filtered the solvent is evaporated the precipitate is collected dried

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

实验步骤: To 7.00 g (46.6 mmol) 1-(4-hydroxymethyl-phenyl)-ethanone in 100 mL THF is added 22.5 g (46.6 mmol) tetrabutylammonium-tribromide dissolved in MeOH/THF. The reaction mixture is stirred 1 h at RT and the solvent is evaporated. The residue is dissolved with water and tertbutylmethylether. The organic phase is washed eight times with water. The combined organic phase is dried over MgSO4, filtered and the solvent is evaporated. The residue is elutriated with diisopropylether and the precipitate is collected and dried. the solvent is evaporated The residue is dissolved with water and tertbutylmethylether The organic phase is washed eight times with water The combined organic phase is dried over MgSO4 filtered the solvent is evaporated the precipitate is collected dried

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

实验步骤: To a solution of 1-(4-hydroxymethyl-phenyl)-ethanone (1 eq) in methanol is added O-(4-chloro-3-trifluoromethyl-benzyl)-hydroxylamine (1 eq) followed by the addition of acetic acid (0.05 eq). The mixture is stirred at room temperature for 5 hours. After concentrated, the residue is purified by column chromatography (30% EtOAc in hexane) to give 1-(4-hydroxymethyl-phenyl)-ethanone O-(4-chloro-3-trifluoromethyl-benzyl)-oxime as an oil [MS: (ES+) 358.1 (M+1)+]. After concentrated the residue is purified by column chromatography (30% EtOAc in hexane)

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

实验步骤: To a solution of 1-(4-hydroxymethyl-phenyl)-ethanone (1 eq) in methanol is added O-(4-chloro-3-trifluoromethyl-benzyl)-hydroxylamine (1 eq) followed by the addition of acetic acid (0.05 eq). The mixture is stirred at room temperature for 5 hours. After concentrated, the residue is purified by column chromatography (30% EtOAc in hexane) to give 1-(4-hydroxymethyl-phenyl)-ethanone O-(4-chloro-3-trifluoromethyl-benzyl)-oxime as an oil [MS: (ES+) 358.1 (M+1)+]. After concentrated the residue is purified by column chromatography (30% EtOAc in hexane)

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: A solution of 1-(4-hydroxymethyl-phenyl)-ethanone (750 mg, 5 mmol) in EtOH (15 ml) was added dropwise at 0° C. to a stirred solution of (E)-3-(5-formyl-pyridin-2-yl)-acrylic acid tert-butyl ester (described in Example 11 STEP A-D, 1.16 g, 5 mmol) and 1.7 M KOH (4.4 ml) in EtOH (10 ml). The mixture was stirred at 0° C. for 5 h and the resulting precipitate was filtered and triturated with di-isopropylether to give 630 mg of desired (E)-3-{5-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-pyridin-2-yl}-acrylic acid tert-butyl ester. The mother liquors were diluted with water and extracted with AcOEt. The organic layer was dried over Na2SO4 and evaporated in vacuo. The residue was triturated with EtOH to give additional 70 mg of (E)-3-{5-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-pyridin-2-yl}-acrylic acid tert-butyl ester. the resulting precipitate was filtered triturated with di-isopropylether

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

实验步骤: A mixture of 1-(4-hydroxymethyl-phenyl)-ethanone (1 g, 6.67 mmol), 4-formylcinnamic acid (1.17 g, 6.67 mmol) and 1.7 M KOH (5.89 ml) in EtOH (60 ml) was stirred at room temperature overnight. The resulting precipitate was filtered and washed with EtOH to give 1.39 g of (E)-3-{4-[(E)-3-(4-hydroxymethyl-phenyl)-3-oxo-propenyl]-phenyl}-acrylic acid as its potassium salt. The resulting precipitate was filtered washed with EtOH

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

实验步骤: To 7.00 g (46.6 mmol) 1-(4-hydroxymethyl-phenyl)-ethanone in 100 mL THF is added 22.5 g (46.6 mmol) tetrabutylammonium-tribromide dissolved in MeOH/THF. The reaction mixture is stirred 1 h at RT and the solvent is evaporated. The residue is dissolved with water and tertbutylmethylether. The organic phase is washed eight times with water. The combined organic phase is dried over MgSO4, filtered and the solvent is evaporated. The residue is elutriated with diisopropylether and the precipitate is collected and dried. the solvent is evaporated The residue is dissolved with water and tertbutylmethylether The organic phase is washed eight times with water The combined organic phase is dried over MgSO4 filtered the solvent is evaporated the precipitate is collected dried