N-(2-chloro-4-nitrophenyl)ethane-1,2-diamine → 4-nitro-2-chloro-N-(beta-ureidoethyl) aniline

Beteiligte Stoffe

Reaktionsschritte

100 g (0.46 mole) of 4-nitro-2-chloro-N-(β-aminoethyl) aniline is dissolved in a liter of water to which 29 cm3 of acetic acid has been added. 41.3 g (0.51 mole) of potassium isocyanate is added to this reaction mixture, which is then left at the ambient temperature for 2 hours. Drying yields 110 g of 4-nitro-2-chloro-N-(β-ureidoethyl) aniline which, after washing with dilute acetic acid and with water, followed by recrystallization in nitromethane, melts at 188° C.

Herkunft & Nachweise