3-溴-4-甲氧基苯乙腈

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N,N-dimethylacetamide (200 mL) was added to Pd-118 (1.009 g) and tetrabutylammonium chloride hydrate (0.916 g), followed by 2-(3-bromo-4-methoxyphenyl)acetonitrile (7 g). Methyl 3-hydroxy-2-methylenebutyrate (5.64 mL) and dicyclohexylamine (9.25 mL) were added and the solution was heated at 80° C. for 3 days. The reaction mixture was diluted with EtOAc (200 mL) and extracted with water. The organic phase was dried, filtered and evaporated under reduced pressure. The crude product was purified by chromatography to afford the subtitle compound as an orange oil, 5.01 g. extracted with water The organic phase was dried filtered evaporated under reduced pressure The crude product was purified by chromatography

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N,N-dimethylacetamide (200 mL) was added to Pd-118 (1.009 g) and tetrabutylammonium chloride hydrate (0.916 g), followed by 2-(3-bromo-4-methoxyphenyl)acetonitrile (7 g). Methyl 3-hydroxy-2-methylenebutyrate (5.64 mL) and dicyclohexylamine (9.25 mL) were added and the solution was heated at 80° C. for 3 days. The reaction mixture was diluted with EtOAc (200 mL) and extracted with water. The organic phase was dried, filtered and evaporated under reduced pressure. The crude product was purified by chromatography to afford the subtitle compound as an orange oil, 5.01 g. extracted with water The organic phase was dried filtered evaporated under reduced pressure The crude product was purified by chromatography

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N,N-dimethylacetamide (200 mL) was added to Pd-118 (1.009 g) and tetrabutylammonium chloride hydrate (0.916 g), followed by 2-(3-bromo-4-methoxyphenyl)acetonitrile (7 g). Methyl 3-hydroxy-2-methylenebutyrate (5.64 mL) and dicyclohexylamine (9.25 mL) were added and the solution was heated at 80° C. for 3 days. The reaction mixture was diluted with EtOAc (200 mL) and extracted with water. The organic phase was dried, filtered and evaporated under reduced pressure. The crude product was purified by chromatography to afford the subtitle compound as an orange oil, 5.01 g. extracted with water The organic phase was dried filtered evaporated under reduced pressure The crude product was purified by chromatography

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

实验步骤: A mixture of sodium tert-butoxide (6.7 g, 70 mmol) in 100 mL NMP stirred at 0° C. was treated dropwise with a mixture of 2-(3-bromo-4-methoxyphenyl)acetonitrile (6.3 g, 28 mmol) and 1-bromo-2-(2-bromoethoxy)ethane (6.5 g, 28 mmol) in 30 mL ether. The mixture was allowed to warm to room temperature and was stirred for 3 hours, M+Na=318/320. The mixture was quenched with 100 mL H2O carefully and the pH was adjusted to 5. The mixture was extracted with ether (3×100 mL). The combined organic layers were washed with H2O (3×50 mL) and brine (20 mL). The organic layer was then dried over anhydrous Na2SO4, concentrated in vacuo, and purified by column chromatography eluting with 10-20% EtOAc/hexane to give 5.18 g of crude product as a yellow solid. MS m/e=318/320 (M+Na)+. to warm to room temperature was stirred for 3 hours The mixture was quenched with 100 mL H2O carefully The mixture was extracted with ether (3×100 mL) The combined organic layers were washed with H2O (3×50 mL) and brine (20 mL) The organic layer was then dried over anhydrous Na2SO4 concentrated in vacuo purified by column chromatography eluting with 10-20% EtOAc/hexane

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: An isopropylmagnesium bromide-0.63M tetrahydrofuran solution (3.2 ml, 2.0 mmol) was added dropwise to a solution of zinc bromide (473 mg, 2.1 mmol) in tetrahydrofuran (2 ml) under ice-cooling. After the mixture was stirred for 15 minutes, the reaction mixture was cooled to −78° C. After 3-bromo-4-methoxybenzyl cyanide (226 mg, 1.0 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II)-dichloromethane adduct (32 mg, 0.04 mmol) were added to the mixture at −78° C., the temperature of the reaction mixture was raised to room temperature and the mixture was further stirred for 5 hours. 1N Hydrochloric acid was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was successively washed with water and a saturated aqueous NaCl solution and dried with anhydrous sodium sulfate. The residue obtained by removing the solvent under reduced pressure was subjected to silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=8/1-6/1) to give crude (3-isopropyl-4-methoxyphenyl)acetonitrile (158 mg). cooling the temperature of the reaction mixture was raised to room temperature the mixture was further stirred for 5 hours the mixture was extracted with ethyl acetate The organic layer was successively washed with water a saturated aqueous NaCl solution and dried with anhydrous sodium sulfate The residue obtained by removing the solvent under reduced pressure was subjected to silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=8/1-6/1)

反应条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N,N-Dimethylformamide (75 ml) was added to 3-bromo-4-methoxybenzyl cyanide (9.0 g, 40 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II)-dichloromethane adduct (400 mg, 0.49 mmol) and potassium carbonate (24.0 g, 174 mmol) at room temperature. Further, triethylborane (1M n-hexane solution, 50 ml, 50 mmol) was added dropwise thereto and the reaction mixture was stirred at 70° C. for 5 hours. After the temperature of the reaction mixture was returned to room temperature, the mixture was poured into water and extracted with ethyl acetate. The organic layer was successively washed with water and a saturated aqueous NaCl solution and dried with anhydrous sodium sulfate. The residue obtained by removing the solvent under reduced pressure was purified by silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=8/1-5/1) to give (3-ethyl-4-methoxyphenyl)acetonitrile (2.6 g, yield: 38%) as an oil. was returned to room temperature extracted with ethyl acetate The organic layer was successively washed with water a saturated aqueous NaCl solution and dried with anhydrous sodium sulfate The residue obtained by removing the solvent under reduced pressure was purified by silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=8/1-5/1)

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

实验步骤: A mixture of sodium tert-butoxide (6.7 g, 70 mmol) in 100 mL NMP stirred at 0° C. was treated dropwise with a mixture of 2-(3-bromo-4-methoxyphenyl)acetonitrile (6.3 g, 28 mmol) and 1-bromo-2-(2-bromoethoxy)ethane (6.5 g, 28 mmol) in 30 mL ether. The mixture was allowed to warm to room temperature and was stirred for 3 hours, M+Na=318/320. The mixture was quenched with 100 mL H2O carefully and the pH was adjusted to 5. The mixture was extracted with ether (3×100 mL). The combined organic layers were washed with H2O (3×50 mL) and brine (20 mL). The organic layer was then dried over anhydrous Na2SO4, concentrated in vacuo, and purified by column chromatography eluting with 10-20% EtOAc/hexane to give 5.18 g of crude product as a yellow solid. MS m/e=318/320 (M+Na)+. to warm to room temperature was stirred for 3 hours The mixture was quenched with 100 mL H2O carefully The mixture was extracted with ether (3×100 mL) The combined organic layers were washed with H2O (3×50 mL) and brine (20 mL) The organic layer was then dried over anhydrous Na2SO4 concentrated in vacuo purified by column chromatography eluting with 10-20% EtOAc/hexane

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

实验步骤: To a mixture of compound 4-methoxyphenyl acetonitrile (5.88 g, 40 mmol), KBr (9.52 g, 80 mmol), tetrabutylammonium chloride (332 mg, 1.2 mmol) in dichloroethane (80 mL), was added 21% w/w nitric acid (48 g, 160 mmol). The reaction mixture was stirred at rt for 20 h, diluted with dichloromethane (80 mL) and washed with sat. NaHCO3 aq. (2×50 mL), water (2×50 mL), brine and dried over Na2SO4. After removal of solvent under vacuum, the residue was triturated with Et2O (10 ml)/hexanes (40 ml) to give 6.32 g of product; Yield: 70%. washed with sat. NaHCO3 aq. (2×50 mL), water (2×50 mL), brine dried over Na2SO4 After removal of solvent under vacuum the residue was triturated with Et2O (10 ml)/hexanes (40 ml)

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: N,N-dimethylacetamide (200 mL) was added to Pd-118 (1.009 g) and tetrabutylammonium chloride hydrate (0.916 g), followed by 2-(3-bromo-4-methoxyphenyl)acetonitrile (7 g). Methyl 3-hydroxy-2-methylenebutyrate (5.64 mL) and dicyclohexylamine (9.25 mL) were added and the solution was heated at 80° C. for 3 days. The reaction mixture was diluted with EtOAc (200 mL) and extracted with water. The organic phase was dried, filtered and evaporated under reduced pressure. The crude product was purified by chromatography to afford the subtitle compound as an orange oil, 5.01 g. extracted with water The organic phase was dried filtered evaporated under reduced pressure The crude product was purified by chromatography