N-bromosuccinmide in N,N-dimethyl-formamide T=40 - 60°C; 75 h;

1: 2.47 g / aq. NaOH / ethanol / 1 h / Heating 2: thionyl chloride / 2 h / Heating 3: 10.9 g / aq. ammonia / acetone / 10 °C 4: 9.0 g / cyanuric chloride / dimethylformamide / 0.5 h 5: 35 mg / N-bromosuccinimide / dimethylformamide / 75 h / 40 - 60 °C View Scheme

1: thionyl chloride / 2 h / Heating 2: 10.9 g / aq. ammonia / acetone / 10 °C 3: 9.0 g / cyanuric chloride / dimethylformamide / 0.5 h 4: 35 mg / N-bromosuccinimide / dimethylformamide / 75 h / 40 - 60 °C View Scheme

1: 9.0 g / cyanuric chloride / dimethylformamide / 0.5 h 2: 35 mg / N-bromosuccinimide / dimethylformamide / 75 h / 40 - 60 °C View Scheme

N-bromosuccinmide; acetic acid T=65 - 90°C; 9 h; Title compound not separated from byproducts;