| 摘要 |
The present invention relates to a new process for the preparation of N-(2-chloro-pyridin-5-yl-methyl)-ethylene-diamine of the formula (I) <IMAGE> (I) in a technically simple manner in high yield and in very good quality. The new process is characterized in that N-(2-chloro-pyridin-5-yl-methyl)-aminoacetonitrile of the formula (II) <IMAGE> (II) is reacted with hydrogen in the presence of ammonia and in the presence of a catalyst and also in the presence of a diluent, at temperatures between 0 DEG C. and 100 DEG C. and a pressure between 1 bar and 100 bar. N-(2-Chloro-pyridin-5-yl-methyl)-ethylenediamine (I) can be used as an intermediate for the preparation of insecticides.
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