Method for producing (hetero)aromatic hydroxylamines

US6255489A · kind A · utility

Assignee

• BASF SE

Inventors

• Ralf Klintz · Havelsee, DE
• Norbert Gotz · Worms, DE
• Michael Keil · Freinsheim, DE
• Manfred Heilig · Ludwigshafen am Rhein, DE
• Horst Wingert · Mannheim, DE
• Uwe Josef Vogelbacher · Ludwigshafen, DE
• Josef Wahl · Schifferstadt, DE
• Frank Wetterich · Mutterstadt, DE
• Gregor Daun · Trochtelfingen, DE

Key dates

• Filing date: Feb 29, 2000
• Grant date: Jul 3, 2001
• Expiry date: Feb 29, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D471/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for producing N-acylated (hetero)aromatic hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings give in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst. ##STR1##