反应详情

If there are used in the manner described under (a), instead of 942 g (3.79 mols) of 3,12-dipropyl-1,2-diaza-1,5,9-cyclododecatriene, 220 g (0.71 mol) of 3,12-dipentyl-1,2-diazacyclododecane (diastereoisomeric mixture) and correspondingly reduced amounts of catalyst and solvent, with otherwise the same procedure, there is obtained, as the main fraction, 136 g (61.3% of theory) of 6,15-diaminoeicosane as colourless oil [b.p. 167°-170° C./0.001 Torr; nD20 =1.4603; IR (liquid) inter alia bands at 3378, 3289 and 1613 cm-1 ].