(2-amino-4-bromophenyl)methanol

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 7.97 mmol), iron powder (2.23 g, 39.9 mmol), ammonium chloride (213 mg, 3.99 mmol), ethanol (20 mL), and water (10 mL) was heated at 75° C. for 1 h, then after cooling filtered through a pad of diatomaceous earth. The filtrate was evaporated and the residue partitioned between ethyl acetate and water, the organic layer was washed with brine, dried (MgSO4), and evaporated to produce (2-amino-4-bromo-phenyl)-methanol (1.53 g, 90%). Off-white solid, MS (EI)=201.0 (M+). after cooling filtered through a pad of diatomaceous earth The filtrate was evaporated the residue partitioned between ethyl acetate and water the organic layer was washed with brine dried (MgSO4) evaporated

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 7.97 mmol), iron powder (2.23 g, 39.9 mmol), ammonium chloride (213 mg, 3.99 mmol), ethanol (20 mL), and water (10 mL) was heated at 75° C. for 1 h, then after cooling filtered through a pad of diatomaceous earth. The filtrate was evaporated and the residue partitioned between ethyl acetate and water, the organic layer was washed with brine, dried (MgSO4), and evaporated to produce (2-amino-4-bromo-phenyl)-methanol (1.53 g, 90%). Off-white solid, MS (EI)=201.0 (M+). after cooling filtered through a pad of diatomaceous earth The filtrate was evaporated the residue partitioned between ethyl acetate and water the organic layer was washed with brine dried (MgSO4) evaporated

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: A solution of (2-amino-4-bromo-phenyl)-methanol (1.53 g, 7.57 mmol) in pyridine (15 mL) was treated with 5-chloro-2-methoxybenzenesulfonyl chloride (1.85 g, 7.57 mmol) at room temperature and stirred for 72 h, then poured upon ice-cold 2 M aq. hydrochloric acid solution and extracted with ethyl acetate. The organic layer was washed with brine, dried (MgSO4), and evaporated to produce a gummy residue, from which the product was precipitated by addition of toluene. The precipitate was collected by filtration and dried to afford N-(5-bromo-2-hydroxymethyl-phenyl)-5-chloro-2-methoxy-benzenesulfonamide (2.51 g, 82%). Off-white solid, MS (ISP)=404.2 (M−H)−. extracted with ethyl acetate The organic layer was washed with brine dried (MgSO4) evaporated to produce a gummy residue from which the product was precipitated by addition of toluene The precipitate was collected by filtration dried

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 7.97 mmol), iron powder (2.23 g, 39.9 mmol), ammonium chloride (213 mg, 3.99 mmol), ethanol (20 mL), and water (10 mL) was heated at 75° C. for 1 h, then after cooling filtered through a pad of diatomaceous earth. The filtrate was evaporated and the residue partitioned between ethyl acetate and water, the organic layer was washed with brine, dried (MgSO4), and evaporated to produce (2-amino-4-bromophenyl)-methanol (1.53 g, 90%). Off-white solid, MS (EI)=201.0 (M+). after cooling filtered through a pad of diatomaceous earth The filtrate was evaporated the residue partitioned between ethyl acetate and water the organic layer was washed with brine dried (MgSO4) evaporated

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

実験手順: A solution of (2-amino-4-bromo-phenyl)-methanol (1.53 g, 7.57 mmol) in pyridine (15 mL) was treated with 5-chloro-2-methoxybenzenesulfonyl chloride (1.85 g, 7.57 mmol) at room temperature and stirred for 72 h, then poured upon ice-cold 2 M aq. hydrochloric acid solution and extracted with ethyl acetate. The organic layer was washed with brine, dried (MgSO4), and evaporated to produce a gummy residue, from which the product was precipitated by addition of toluene. The precipitate was collected by filtration and dried to afford N-(5-bromo-2-hydroxymethyl-phenyl)-5-chloro-2-methoxy-benzenesulfonamide (2.51 g, 82%). Off-white solid, MS (ISP)=404.2 (M−H)−. extracted with ethyl acetate The organic layer was washed with brine dried (MgSO4) evaporated to produce a gummy residue from which the product was precipitated by addition of toluene The precipitate was collected by filtration dried

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 7.97 mmol), iron powder (2.23 g, 39.9 mmol), ammonium chloride (213 mg, 3.99 mmol), ethanol (20 mL), and water (10 mL) was heated at 75° C. for 1 h, then after cooling filtered through a pad of diatomaceous earth. The filtrate was evaporated and the residue partitioned between ethyl acetate and water, the organic layer was washed with brine, dried (MgSO4), and evaporated to produce (2-amino-4-bromo-phenyl)-methanol (1.53 g, 90%). Off-white solid, MS (EI)=201.0 (M+). after cooling filtered through a pad of diatomaceous earth The filtrate was evaporated the residue partitioned between ethyl acetate and water the organic layer was washed with brine dried (MgSO4) evaporated

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of (4-bromo-2-nitro-phenyl)-methanol (1.85 g, 7.97 mmol), iron powder (2.23 g, 39.9 mmol), ammonium chloride (213 mg, 3.99 mmol), ethanol (20 mL), and water (10 mL) was heated at 75° C. for 1 h, then after cooling filtered through a pad of diatomaceous earth. The filtrate was evaporated and the residue partitioned between ethyl acetate and water, the organic layer was washed with brine, dried (MgSO4), and evaporated to produce (2-amino-4-bromo-phenyl)-methanol (1.53 g, 90%). Off-white solid, MS (EI)=201.0 (M+). after cooling filtered through a pad of diatomaceous earth The filtrate was evaporated the residue partitioned between ethyl acetate and water the organic layer was washed with brine dried (MgSO4) evaporated