反应详情

The procedure described in (a) is repeated, starting from 74.8 g (0.2 mole) of 3,12-di-(3-heptyl)-1,2-diazacyclododecane (diastereoisomer mixture) and using correspondingly reduced amounts of catalyst and solvent, affording after purification by chromatography and distillation 29.9 g (40% of theory) of 6,15-diamino-5,16-diethyleicosane as a colourless oil [b.p. 170° C./0.01 torr; nD20 =1.4662; IR spectrum (liquid) includes bands at 3278, 1613 cm-1 ]. The 1,2-diaza-1,5,9-cyclododecatrienes and 1,2-diazacyclododecanes used as starting materials can be prepared by the methods described in German Offenlegungsschrift Nos. 2,330,087 and 2,549,403.

1. customaffording
2. customafter purification
3. distillationby chromatography and distillation 29.9 g (40% of theory) of 6,15-diamino-5,16-diethyleicosane as a colourless oil [b.p. 170° C./0.01 torr
4. customcan be prepared by the methods