| 主权项 |
1. A process for preparing aromatic amines of formula (I):
Ar—NR1R2 (I) where Ar is a substituted or unsubstituted aryl, heteroaryl, arylalkyl, heteroarylalkyl radical, R1 and R2 can be identical or different and are each H, a hydrocarbon group, a heteroatom-containing hydrocarbon group which may have suitable substituents, and the radicals R1 and R2 may form a ring which can be 4- to 20-membered, saturated or unsaturated, alicyclic or heteroalicyclic and may have suitable substituents, said process comprising reacting an aromatic compound having formula II:
Ar—X (II) where Ar is as defined above and X is F, Cl, Br, I or OSO2R3 in which R3 is a hydrocarbon group, in the presence of a catalyst with an amine of formula III:
H—NR1R2 (III) where R1 and R2 are as defined above, and a base, wherein the catalyst is selected from among transition metal complexes which have one or more ligands having formula IV: where R3, R4, R5 and R6 can be identical or different and are each H, a linear or branched C1-C6-alkyl radical which may optionally be substituted or R3 and R4 and/or R5 and R6 are joined to one another to form a ring, Y is halogen or an —OR7 radical, where R7 is H or a linear or branched C1-C6-alkyl chain which may optionally be substituted or an aryl radical which may optionally be substituted. |
