The present invention relates to a process for the preparation of aromatic amino compounds which are substituted by a least one group comprising at least one unsaturated carbon-carbon bond, by catalytic hydrogenation of corresponding aromatic nitro compounds in the presence of a modified noble metal catalyst, wherein the noble metal catalyst used is platinum modified with a metal selected from the group consisting of lead, mercury, bismuth, germanium, cadmium, arsenic, antimony, silver and gold, and to novel noble metal catalysts for use in this process.
本发明涉及一种制备芳香族
氨基化合物的方法,该化合物被至少一个含有至少一个不饱和碳-碳键的基团取代,通过在改性
贵金属催化剂存在下催化氢化对应的芳香族
硝基化合物而得到,其中所使用的
贵金属催化剂是
铂经过
铅、
汞、
铋、
锗、
镉、
砷、
锑、
银和
金等
金属的改性而成,并且本发明还涉及用于该方法的新型
贵金属催化剂。