申请人:Norvartis Corporation
公开号:US05856578A1
公开(公告)日:1999-01-05
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。