1-(2-bromophenyl)propan-2-one

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 3-necked, round bottom flask under nitrogen was added 4.0 g (18.8 mmole) of 2-bromophenyl-2-propanone in 40 ml of triethylamine, 2.5 ml (22.5 mmole) of phenylacetylene, 0.3 g (2 mole %) of bis-(triphenylphosphine) palladium dichloride and 0.14 g (4 mole %) of cuprous iodide. After refluxing for three hours another 0.5 ml (4.5 mmole) of phenylacetylene, 0.6 g (4 mole %) of bis (triphenylphosphine) palladium dichloride and 0.3 g (8 mole %) of cuprous iodide were added. Reflux was continued another 11/2 hours before 1.0 ml (9.0 mmole) of phenylacetylene and 10 ml of triethylamine were added. After an additional 21/2 hours at reflux the reaction was partitioned between ether and water, washed with brine, dried over MgSO4 and evaporated in vacuo to yield 55 g of crude reaction product. The mixture was flash chromatographed eluting with 1:19 ethyl acetate: hexane to give 2.6 g (59%) of 2-(phenylethynyl)phenyl-2-propanone as a dark oil. were added Reflux 2 hours were added After an additional 21/2 hours at reflux the reaction was partitioned between ether and water washed with brine dried over MgSO4 evaporated in vacuo to yield 55 g of crude reaction product chromatographed eluting with 1:19 ethyl acetate

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a 3-necked, round bottom flask under nitrogen was added 4.0 g (18.8 mmole) of 2-bromophenyl-2-propanone in 40 ml of triethylamine, 2.5 ml (22.5 mmole) of phenylacetylene, 0.3 g (2 mole %) of bis-(triphenylphosphine) palladium dichloride and 0.14 g (4 mole %) of cuprous iodide. After refluxing for three hours another 0.5 ml (4.5 mmole) of phenylacetylene, 0.6 g (4 mole %) of bis (triphenylphosphine) palladium dichloride and 0.3 g (8 mole %) of cuprous iodide were added. Reflux was continued another 11/2 hours before 1.0 ml (9.0 mmole) of phenylacetylene and 10 ml of triethylamine were added. After an additional 21/2 hours at reflux the reaction was partitioned between ether and water, washed with brine, dried over MgSO4 and evaporated in vacuo to yield 55 g of crude reaction product. The mixture was flash chromatographed eluting with 1:19 ethyl acetate: hexane to give 2.6 g (59%) of 2-(phenylethynyl)phenyl-2-propanone as a dark oil. were added Reflux 2 hours were added After an additional 21/2 hours at reflux the reaction was partitioned between ether and water washed with brine dried over MgSO4 evaporated in vacuo to yield 55 g of crude reaction product chromatographed eluting with 1:19 ethyl acetate

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (S)-ethyl 2-(5-bromo-3-methyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)-2-tert-butoxyacetate (0.90 g, 1.7 mmol; prepared in a similar fashion to (S)-ethyl 2-tert-butoxy-2-(3,6-dimethyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)acetate beginning with 1-(2-bromophenyl)propan-2-one) in THF (7 mL) cooled to 0° C. was treated with tetrabutylammonium fluoride (1M in THF, 1.7 mL, 1.7 mmol) dropwise. After 1 hour, saturated NaHCO3 and EtOAc were added and the aqueous layer extracted with EtOAc. The combined organics were washed with brine, dried over anhydrous MgSO4, filtered, and concentrated in vacuo. Purification via Yamazen column chromatography (0-15% EtOAc/hex) afforded (S)-ethyl 2-(5-bromo-1-hydroxy-3-methylnaphthalen-2-yl)-2-tert-butoxyacetate. LCMS-ESI− (m/z): [M−H]− calcd for C19H22O4Br: 395.07. found: 395.04. the aqueous layer extracted with EtOAc The combined organics were washed with brine dried over anhydrous MgSO4 filtered concentrated in vacuo Purification via Yamazen column chromatography (0-15% EtOAc/hex)

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (S)-ethyl 2-(5-bromo-3-methyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)-2-tert-butoxyacetate (0.90 g, 1.7 mmol; prepared in a similar fashion to (S)-ethyl 2-tert-butoxy-2-(3,6-dimethyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)acetate beginning with 1-(2-bromophenyl)propan-2-one) in THF (7 mL) cooled to 0° C. was treated with tetrabutylammonium fluoride (1M in THF, 1.7 mL, 1.7 mmol) dropwise. After 1 hour, saturated NaHCO3 and EtOAc were added and the aqueous layer extracted with EtOAc. The combined organics were washed with brine, dried over anhydrous MgSO4, filtered, and concentrated in vacuo. Purification via Yamazen column chromatography (0-15% EtOAc/hex) afforded (S)-ethyl 2-(5-bromo-1-hydroxy-3-methylnaphthalen-2-yl)-2-tert-butoxyacetate. LCMS-ESI− (m/z): [M−H]− calcd for C19H22O4Br: 395.07. found: 395.04. the aqueous layer extracted with EtOAc The combined organics were washed with brine dried over anhydrous MgSO4 filtered concentrated in vacuo Purification via Yamazen column chromatography (0-15% EtOAc/hex)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 28.3 g (112 mmole) of 2-bromophenyl-2-propanone, 14.7 ml (134 mmole) of phenylacetylene, 1.8 g (2.24 mmole) of bis(triphenylphosphine)palladium (II) chloride and 0.85 g (4.48 mmole) of copper (I) iodide in 250 ml of triethylamine under nitrogen was heated under reflux for 31/2 hours. An additional 3.6 ml of phenylacetylene, 0.36 g of palladium complex and 0.1 g copper (I) iodide were added. The mixture was heated under reflux for 31/2 hours. An additional 5.0 ml of phenylacetylene, 0.36 g of palladium complex and 0.17 g of copper (I) iodide were added. The mixture was heated under reflux for 2 hours. An additional 5.0 ml of phenylacetylene was added. The mixture was heated under reflux for 31/2 hours. The solvent was evaporated in vacuo and the residue taken up in ether. The ether was washed with water and brine, dried (K2CO3) and the solvent evaporated in vacuo. The residue was flash chromatographed on silica gel with ethyl acetate:hexane, 9:1, as eluant. The solvent was evaporated from the major compound bearing fraction to afford 21.2 g (81% yield) of 1-[2-(phenylethynyl)phenyl]-2-propanone as an oil. under reflux for 31/2 hours The mixture was heated under reflux for 31/2 hours The mixture was heated under reflux for 2 hours The mixture was heated under reflux for 31/2 hours The solvent was evaporated in vacuo The ether was washed with water and brine dried (K2CO3) the solvent evaporated in vacuo chromatographed on silica gel with ethyl acetate The solvent was evaporated from the major compound bearing fraction

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of 28.3 g (112 mmole) of 2-bromophenyl-2-propanone, 14.7 ml (134 mmole) of phenylacetylene, 1.8 g (2.24 mmole) of bis(triphenylphosphine)palladium (II) chloride and 0.85 g (4.48 mmole) of copper (I) iodide in 250 ml of triethylamine under nitrogen was heated under reflux for 31/2 hours. An additional 3.6 ml of phenylacetylene, 0.36 g of palladium complex and 0.1 g copper (I) iodide were added. The mixture was heated under reflux for 31/2 hours. An additional 5.0 ml of phenylacetylene, 0.36 g of palladium complex and 0.17 g of copper (I) iodide were added. The mixture was heated under reflux for 2 hours. An additional 5.0 ml of phenylacetylene was added. The mixture was heated under reflux for 31/2 hours. The solvent was evaporated in vacuo and the residue taken up in ether. The ether was washed with water and brine, dried (K2CO3) and the solvent evaporated in vacuo. The residue was flash chromatographed on silica gel with ethyl acetate:hexane, 9:1, as eluant. The solvent was evaporated from the major compound bearing fraction to afford 21.2 g (81% yield) of 1-[2-(phenylethynyl)phenyl]-2-propanone as an oil. under reflux for 31/2 hours The mixture was heated under reflux for 31/2 hours The mixture was heated under reflux for 2 hours The mixture was heated under reflux for 31/2 hours The solvent was evaporated in vacuo The ether was washed with water and brine dried (K2CO3) the solvent evaporated in vacuo chromatographed on silica gel with ethyl acetate The solvent was evaporated from the major compound bearing fraction

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: Ethyl 2-(5-bromo-3-methyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)-2-(4-methoxybenzyl oxy)acetate (35) was prepared similarly to ethyl 2-(6-methoxy-3-methyl-1-(trifluoromethylsulfonyloxy)naphthalen-2-yl)-2-(4-methoxybenzyloxy)acetate of Example 32, using 1-(2-bromophenyl)propan-2-one as the starting material instead of 1-(3-methoxyphenyl)propan-2-one. 1H-NMR: 400 MHz, (CDCl3) δ: 8.11 (s, 1H), 8.01 (d, J=8.8 Hz, 1H), 7.85 (d, J=7.6 Hz, 1H), 7.40 (t, J=7.6 Hz, 1H), 7.23 (d, J=8.4 Hz, 2H), 6.81 (d, J=7.6 Hz, 2H), 5.61 (s, 1H), 4.62 (q, J=11.2 Hz, 2H), 4.26-4.15 (m, 2H), 3.75 (s, 3H), 2.62 (s, 3H), 1.18 (t, J=6.8 Hz, 3H).

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a mixture of 1-(2-bromophenyl)propan-2-one (1.5 g, 7.04 mmol) and NaOAc (693 mg, 8.45 mmol) in MeOH (50 mL) at RT was added hydroxylamine hydrochloride (539 mg, 7.8 mmol). After the reaction mixture was stirred at RT for 18 h, it was concentrated in vacuo. Water was added (100 mL), and the mixture was extracted with EtOAc (50 mL×3), dried (MgSO4) and concentrated in vacuo to afford 1-(2-bromophenyl)propan-2-one oxime as a yellow solid (1.51 g, 94%). MS (ESI): m/z=228.1 [M+1]+. it was concentrated in vacuo Water was added (100 mL) the mixture was extracted with EtOAc (50 mL×3) dried (MgSO4) concentrated in vacuo

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-Bromophenylacetone (4.45000 g, 21 mmol) was dissolved in 10 mL MeOH and trimethyl orthoformate (11 mL, 104 mmol) and hydrogen chloride, 4.0M solution in 1,4-dioxane (5.2 mL, 21 mmol) were added. The mixture was stirred for 1 h and neutralized carefully with DIEA (pH 7). The mixture was evaporated and filtered through a plug of silica providing 1-bromo-2-(2,2-dimethoxypropyl)benzene as a colorless liquid. The mixture was evaporated filtered through a plug of silica

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 1-(2-bromophenyl) propane-2-one (30 g, 140 mmol) in MeOH (100 ml) was added NaBH4 (6.09 g, 210 mmol) at 0° C. and stirred at room temperature for 2 h. The reaction mixture was quenched with water and concentrated under reduced pressure to afford crude compound. The title compound was purified by separation methods A, E and M (Yield 28.0 g). The enantiomer-1 showed up at tr=7.86 min with Chiralcel OD-H (4.6×250 mm) 5μ, hexane:2-PrOH:TFA (90:5:0.1), 1 ml/min. The reaction mixture was quenched with water concentrated under reduced pressure to afford crude compound The title compound was purified by separation methods A, E and M (Yield 28.0 g) showed up at tr=7.86 min with Chiralcel OD-H (4.6×250 mm) 5μ, hexane:2-PrOH:TFA (90:5:0.1), 1 ml/min.