反应详情

温度

100 °C

490 g (1.84 mols) of 2,2-dimethyl-11-isopropyl-11-aminoundeca-4,8-dienal-oxime is dissolved in 2.4 liters of methanol, and the solution is transferred, together with about 200 g of liquid ammonia, with the addition of 150 g of Raney nickel, to a 6.3-liter steel autoclave. Hydrogen is subsequently injected to give a pressure of 100 bars, and the temperature is raised to 100° C. as stirring is maintained. Hydrogenation is performed for about 5 hours under these conditions; the mixture is then cooled, and the ammonia and excess hydrogen are released. Subsequent distillation under high vacuum yields 436 g (1.705 mols) of 1-isopropyl-10,10-dimethyl-1,11-diaminoundecane in the form of colourless liquid as clear as water; b.p. 87° C./4 Pa; nD20 =1.4619.

1. customto give a pressure of 100 bars
2. temperatureis maintained
3. temperaturethe mixture is then cooled
4. distillationSubsequent distillation under high vacuum