Patent ID: 6946577
Filing Date: 2005-09-20
Classification: C07C

Abstract:
1. Process for the production of aminodiphenylamines comprising the steps of reacting nitrohalogenated benzenes with anilines in the presence of a base and a catalyst, wherein the catalyst is copper-phosphorus complexes of the general formula wherein X may be identical or different and denotes O, NH, S or C M may be identical or different and denotes C Y denotes halogen or a trifluoroacetyl, trifluoromethanesulfonyl, nonafluorobutanesulfonyl, cyanide, acetyl, an optionally fluorinated acetylacetonyl, a nitrate, arylsulfonyl, oxinate, phosphate, carbonate or tetrafluoroborate radical, z denotes 1, 2 or 3, m denotes integers from 1 to 6, r denotes 0, 1 or 2, and s denotes 0 or 1, wherein intermediately formed nitrodiphenylamines are hydrogenated.