Process for the continuous preparation of imidoperoxycarboxylic acids

US5132431A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Hermann Fuchs
• Hanspeter Gethoffer · Frankfurt am Main, DE
• Walter Gilb · Hofheim, DE

Key dates

• Filing date: Feb 1, 1991
• Grant date: Jul 21, 1992
• Expiry date: Feb 1, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D209/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the continuous preparation of imidoperoxycarboxylic acids of the formula ##STR1## in which A is C.sub.2 -C.sub.4 -alkylene, phenylene, naphthylene or a group of the formula ##STR2## and R is a group of the formula --COOH, --SO.sub.3 H or --Cl, and X is C.sub.1 -C.sub.19 -alkylene or arylene, in which a solution of imidocarboxylic acids of the formula ##STR3## in sulfuric acid or methanesulfonic acid and an aqueous solution of hydrogen peroxide are continuously metered into a static mixer, then the solution of the imidoperoxycarboxylic acid obtained in this way is treated with water and the precipitated product is isolated.