N4-substituted 1-alkoxy-2-acylamino-4-aminobenzenes, process for their preparation and their use

US5387716A · kind A · utility

Assignee

• Cassella Aktiengesellschaft · DE

Inventors

• Willi Steckelberg · Hofheim, DE
• Peter Koch · Frankfurt, DE

Key dates

• Filing date: May 3, 1994
• Grant date: Feb 7, 1995
• Expiry date: May 3, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C271/28
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to compounds of the general formula I ##STR1## wherein R.sup.1 denotes formyl or (C.sub.1 -C.sub.3)-alkylcarbonyl, PA0 R.sup.2 denotes the group CH.sub.2 --CH(A)--B, wherein A represents hydroxyl and B represents hydrogen or methyl, or A represents hydrogen and B represents hydroxymethyl, or the group COO--CH(X)--CH.sub.2 --D, wherein X represents hydrogen or methyl and D represents chlorine or bromine, or X represents hydrogen and D represents chloromethyl or bromomethyl, and PA0 R.sup.3 denotes (C.sub.1 -C.sub.4)-alkyl, processes for their preparation and their use.