3-aminophenylpentane-1,5-diones

US5053524A · kind A · utility

Assignee

• BASF SE

Inventors

• Friedrich-Wilhelm Raulfs · Ludwigshafen, DE
• Udo Mayer · Bischofswerda, DE
• Andreas Oberlinner · Ludwigshafen, DE

Key dates

• Filing date: Apr 27, 1990
• Grant date: Oct 1, 1991
• Expiry date: Apr 27, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

3-Aminophenylpentane-1,5-diones of the formula I ##STR1## where R.sup.1 and R.sup.2 are, independently of one another, hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.4 -C.sub.8 -cycloalkyl, cyano-C.sub.2 -C.sub.4 -alkyl, hydroxy-C.sub.2 -C.sub.4 -alkyl, chloro-C.sub.2 -C.sub.4 -alkyl, phenyl-C.sub.1 -C.sub.2 -alkyl which can be substituted by chlorine, or phenyl which can be substituted by clorine or methyl, or R.sup.1 and R.sup.2 form, together with the nitrogen to which they are bonded, a heterocyclic radical which can contain further hetero atoms, PA1 R.sup.3 is hydrogen, fluorine, chlorine, C.sub.1 -C.sub.2 -alkyl or C.sub.2 -C.sub.5 -alkoxy or, if R.sup.3 is ortho to --NR.sup. R.sup.2, R.sup.3 and R.sup.2 together form C.sub.2 -C.sub.4 -alkylene, which can be substituted, or 1,2-phenylene and PA1 A is naphthyl or a radical of the formula II ##STR2## where X is hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.5 -alkyl, hydroxyl, C.sub.1 -C.sub.5 -alkoxy, phenoxy, phenyl-C.sub.1 -C.sub.2 -alkoxy, cyano or phenyl and PA1 n is 1 or 2, with the proviso that R.sup.1 and R.sup.2 are not both methyl when A is phenyl, are described.