4-amino-N-butylbenzenesulfonamide

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Sodium dithionite (11.4 g, 65 mmol) and sodium carbonate (5.6 g, 53 mmol) were dissolved in water (65 mL) and heated to 70° C. A suspension of the above 4-nitrophenylsulfonamide (2.64 g, 10.2 mmol) in methanol (65 mL) was added and the resulting mixture was stirred at 70° C. for 1.5 hour. The cooled mixture was filtered and the volume of the filtrate was reduced by 50% in vacuo. The aqueous mixture was extracted with ethyl acetate (3×60 mL), and the combined organic extracts were dried (MgSO4) and concentrated in vacuo to afford 0.14 g (6%) of 4-amino-N-butylbenzenesulfonamide as a solid. was added The cooled mixture was filtered The aqueous mixture was extracted with ethyl acetate (3×60 mL) the combined organic extracts were dried (MgSO4) concentrated in vacuo

Conditions: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Sodium dithionite (11.4 g, 65 mmol) and sodium carbonate (5.6 g, 53 mmol) were dissolved in water (65 mL) and heated to 70° C. A suspension of the above 4-nitrophenylsulfonamide (2.64 g, 10.2 mmol) in methanol (65 mL) was added and the resulting mixture was stirred at 70° C. for 1.5 hour. The cooled mixture was filtered and the volume of the filtrate was reduced by 50% in vacuo. The aqueous mixture was extracted with ethyl acetate (3×60 mL), and the combined organic extracts were dried (MgSO4) and concentrated in vacuo to afford 0.14 g (6%) of 4-amino-N-butylbenzenesulfonamide as a solid. was added The cooled mixture was filtered The aqueous mixture was extracted with ethyl acetate (3×60 mL) the combined organic extracts were dried (MgSO4) concentrated in vacuo