反应详情

温度

230 °C

A mixture of 93.3 g of 2-(2-aminoethylamino) ethanol (0.9 moles) and 52.1 g of urea (0.87 moles) was heated slowly to 230° C. with stirring. The evolution of ammonia began when the temperature reached 130° C. The reaction mixture was heated at 230° C. for 2 hours. The mixture solidified to a light-yellow solid after it had cooled to room temperature to afford 110.5 g of hydroxyethylethyleneurea. Recrystallized from acetone, M.P.: 55-57.50° C.; 1 H NMR (DMSO-d6): d 6.3 (s, 1 H), 4.6 (s, 1 H), 3.5-3.0 (m, 8 H).

1. customreached 130° C
2. temperatureThe reaction mixture was heated at 230° C. for 2 hours
3. temperaturehad cooled to room temperature