Preparation of p-substituted, aromatic amines
AssigneeBASF SE
InventorsFranz Merger, Gerhard Nestler
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Abstract
p-Substituted aromatic amines are prepared by reacting a p-substituted, aromatic carbamic acid ester with an aromatic amine in the presence of an aliphatic or cycloaliphatic alcohol. The aromatic amines obtainable by the process according to the invention are antiseptics and valuable starting materials for the preparation of dyes, resins, finishes, plastics, pesticides and drugs.
Claims6
A process for the preparation of p-substituted, aromatic amines of the formula ##STR5## where the individual radical R.sup.1 and R.sup.2 may be identical or different and each is an araliphatic or aliphatic radical, R.sup.1 may also be a monocyclic or bicyclic cycloaliphatic radical and each R.sup.2 may also be an aliphatic-aromatic or aromatic radical, hydrogen or halogen, wherein a p-substituted, aromatic carbamic acid ester of the formula ##STR6## where R.sup.1 and R.sup.2 have the above meanings and R.sup.3 is an aliphatic radical, is reacted with an aromatic amine of the formula ##STR7## where R.sup.2 has the above meanings, in the presence of an aliphatic alcohol of the formula
- R.sup.4 --OH IV
- where R.sup.4 is an aliphatic or cycloaliphatic radical.
Dependencies are inferred from the claim text.