There are described compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently of one another represent alkyl having 1-8 C atoms, or together with the bond C atom they represent a cycloaliphatic ring having 4-8 C atoms, and R.sub.3 represents ethyl; or wherein R.sub.1 represents alkyl having 1-8 C atoms, R.sub.2 represents hydrogen, or alkyl having 1-8 C atoms, and R.sub.3 represents tertiary alkyl having 4-8 C atoms. The compounds of the formula I can be produced in a simple manner, in good to very good yields, by isomerisation of suitably substituted allylamines in an inert organic solvent and in the presence of a catalyst. The compounds of the formula I constitute valuable intermediates for producing active substances for combating plant pests.
本文描述了以下式子的化合物:##STR1## 其中R.sub.1和R.sub.2分别独立地代表具有1-8个碳原子的烷基,或者与C原子的键一起代表具有4-8个碳原子的环状脂肪族环;而R.sub.3代表乙基;或者其中R.sub.1代表具有1-8个碳原子的烷基,R.sub.2代表氢原子或具有1-8个碳原子的烷基,而R.sub.3代表具有4-8个碳原子的三级烷基。式I的化合物可以通过在惰性有机溶剂和催化剂存在下,适当取代的
烯丙胺异构化反应中简单地,收率良好地制备。式I的化合物是制造用于对抗植物害虫的活性物质的有价值的中间体。