Toluene → ar-Bromo-ar-nitrobenzenamine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

1-Bromo-3,5-dinitrobenzene (14.77 g, 59.8 mmol) was dissolved in methanol (150 mL) and toluene (374 mL) and a solution of sodium hydrosulfide (10.06 g, 179 mmol) in water (10 mL) and methanol (150 mL) was added dropwise over a period of 60 minutes. The reaction was stirred at 80° C. for 3 hours. The reaction mixture was cooled to room temperature and then extracted 3 times with ethyl acetate. The organic layers were combined, washed with brine, dried with MgSO4, filtered, and concentrated under reduced pressure. The crude material required no further purification to yield 12.93 g (59.6 mmol, 100%) of 3-bromo-5-nitroaniline.

Herkunft & Nachweise