3-bromo-1-(4-bromophenyl)propan-1-one

反応条件: temp:0.00; pressure:0.00; stir:

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: NaBH4 (1.5 g, 39.7 mmol) was added by portions to a solution of 3-bromo-1-(4-bromophenyl)propan-1-one (11.7 g, 40 mmol) (Preparation 5) in MeOH while keeping the temperature below 10° C. After 1 h at RT, 1N aqueous hydrochloric acid was added at 5° C. to pH=1 and the mixture was concentrated in vacuum. The residue was dissolved in water and extracted three times with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-ol as a yellow oil (11.1 g). 1H NMR (CDCl3): 7.47 (2H, d, J=8.3 Hz), 7.22 (2H, d, J=8.3 Hz), 4.87 (1H, br s), 3.50-3.62 (1H, m), 3.31-3.42 (1H, m), 2.35 (1H, OH, br s), 2-2.31 (2H, m). the temperature below 10° C the mixture was concentrated in vacuum The residue was dissolved in water extracted three times with DCM The organic layer was dried over Na2SO4 concentrated

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

実験手順: NaBH4 (1.5 g, 39.7 mmol) was added by portions to a solution of 3-bromo-1-(4-bromophenyl)propan-1-one (11.7 g, 40 mmol) (Preparation 5) in MeOH while keeping the temperature below 10° C. After 1 h at RT, 1N aqueous hydrochloric acid was added at 5° C. to pH=1 and the mixture was concentrated in vacuum. The residue was dissolved in water and extracted three times with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-ol as a yellow oil (11.1 g). 1H NMR (CDCl3): 7.47 (2H, d, J=8.3 Hz), 7.22 (2H, d, J=8.3 Hz), 4.87 (1H, br s), 3.50-3.62 (1H, m), 3.31-3.42 (1H, m), 2.35 (1H, OH, br s), 2-2.31 (2H, m). the temperature below 10° C the mixture was concentrated in vacuum The residue was dissolved in water extracted three times with DCM The organic layer was dried over Na2SO4 concentrated

反応条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: AlCl3 (23.8 g, 178 mmol) was added by portions to bromobenzene (155 ml, 1.47 mol) at 0° C. 3-Bromopropionyl chloride (25 g, 146 mmol) was added dropwise to the red solution kept at 0° C. over 30 min. After 1 h at RT, the reaction mixture was heated to 50° C. for 1 h. After cooling, the mixture was poured over ice/water and extracted with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-one (36 g) which was crystallized from petroleum ether (mp=66° C.). 1H NMR (CDCl3): 7.82 (2H, d, J=8.5 Hz), 7.62 (2H, d, J=8.5 Hz), 3.73 (2H, t, J=6.5 Hz), 3.55 (2H, t, J=6.5 Hz). After 1 h at RT After cooling extracted with DCM The organic layer was dried over Na2SO4 concentrated

反応条件: temp:0.00; pressure:0.00; stir:

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: NaBH4 (1.5 g, 39.7 mmol) was added by portions to a solution of 3-bromo-1-(4-bromophenyl)propan-1-one (11.7 g, 40 mmol) (Preparation 5) in MeOH while keeping the temperature below 10° C. After 1 h at RT, 1N aqueous hydrochloric acid was added at 5° C. to pH=1 and the mixture was concentrated in vacuum. The residue was dissolved in water and extracted three times with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-ol as a yellow oil (11.1 g). 1H NMR (CDCl3): 7.47 (2H, d, J=8.3 Hz), 7.22 (2H, d, J=8.3 Hz), 4.87 (1H, br s), 3.50–3.62 (1H, m), 3.31–3.42 (1H, m), 2.35 (1H, OH, br s), 2–2.31 (2H, m). the temperature below 10° C the mixture was concentrated in vacuum The residue was dissolved in water extracted three times with DCM The organic layer was dried over Na2SO4 concentrated

反応条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: AlCl3 (23.8 g, 178 mmol) was added by portions to bromobenzene (155 ml, 1.47 mol) at 0° C. 3-Bromopropionyl chloride (25 g, 146 mmol) was added dropwise to the red solution kept at 0° C. over 30 min. After 1 h at RT, the reaction mixture was heated to 50° C. for 1 h. After cooling, the mixture was poured over ice/water and extracted with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-one (36 g) which was crystallized from petroleum ether (mp=66° C.). 1H NMR (CDCl3): 7.82 (2H, d, J=8.5 Hz), 7.62 (2H, d, J=8.5 Hz), 3.73 (2H, t, J=6.5 Hz), 3.55 (2H, t, J=6.5 Hz). After 1 h at RT After cooling extracted with DCM The organic layer was dried over Na2SO4 concentrated

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

実験手順: NaBH4 (1.5 g, 39.7 mmol) was added by portions to a solution of 3-bromo-1-(4-bromophenyl)propan-1-one (11.7 g, 40 mmol) (Preparation 5) in MeOH while keeping the temperature below 10° C. After 1 h at RT, 1N aqueous hydrochloric acid was added at 5° C. to pH=1 and the mixture was concentrated in vacuum. The residue was dissolved in water and extracted three times with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-ol as a yellow oil (11.1 g). 1H NMR (CDCl3): 7.47 (2H, d, J=8.3 Hz), 7.22 (2H, d, J=8.3 Hz), 4.87 (1H, br s), 3.50-3.62 (1H, m), 3.31-3.42 (1H, m), 2.35 (1H, OH, br s), 2-2.31 (2H, m). the temperature below 10° C the mixture was concentrated in vacuum The residue was dissolved in water extracted three times with DCM The organic layer was dried over Na2SO4 concentrated

反応条件: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: AlCl3 (23.8 g, 178 mmol) was added by portions to bromobenzene (155 ml, 1.47 mol) at 0° C. 3-Bromopropionyl chloride (25 g, 146 mmol) was added dropwise to the red solution kept at 0° C. over 30 min. After 1 h at RT, the reaction mixture was heated to 50° C. for 1 h. After cooling, the mixture was poured over ice/water and extracted with DCM. The organic layer was dried over Na2SO4 and concentrated to yield 3-bromo-1-(4-bromophenyl)propan-1-one (36 g) which was crystallized from petroleum ether (mp=66° C.). 1H NMR (CDCl3): 7.82 (2H, d, J=8.5 Hz), 7.62 (2H, d, J=8.5 Hz), 3.73 (2H, t, J=6.5 Hz), 3.55 (2H, t, J=6.5 Hz). After 1 h at RT After cooling extracted with DCM The organic layer was dried over Na2SO4 concentrated