Patent ID: 6946577

Claim:
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 n H 2n , with the proviso that n may be arbitrarily chosen for each X and denotes 0, 1, 2 or 3, M may be identical or different and denotes C 6 -C 18 -aryl, C 1 -C 19 -alkyl, C 7 -C 19 -aralkyl or denotes heteroaryl with 1 to 3 heteroatoms and 6 to 19 C atoms, wherein two or more radicals M may arbitrarily be bridged by a covalent bridge or by an alkylidene bridge containing 1 to 4 carbon atoms, 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.