Acylated aminophenylsulfonylureas; preparation and use as herbicides and plant growth regulators

US5658854A · kind A · utility

Assignee

• Hoechst Schering Agrevo GmbH · DE

Inventors

• Gerhard Schnabel · Elsenfeld, DE
• Lothar Willms · Hillscheid, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE

Key dates

• Filing date: Jun 30, 1994
• Grant date: Aug 19, 1997
• Expiry date: Jun 30, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C311/65
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Acylated aminophenylureas, preparation and use as herbicides and plant growth regulators The compounds of the formula I or their salts ##STR1## in which G is a radical G1, G2 or G3 ##STR2## R.sup.1 is H or alkyl, R.sup.2 is COOH, CSOH or a derivative of the carboxyl or thiocarboxyl group, of 1 to 20 carbon atoms, or acyl of the type CO-R.degree. of 1-12 carbon atoms, or an imino, hydrazone or oxime derivative of the group CO-R.degree., and R.degree. , R.sup.3a, R.sup.4a, R.sup.3b, R.sup.4b, W, X, Y and Z are as defined in claim 1, are suitable as selective herbicides and plant growth regulators in crops. The preparation is carried out in analogy to known processes (see claim 5) by way of intermediates, some of which are new, from the group consisting of benzene-sulfonamides (II), benzenesulfonyl isocyanates (IV) and benzesulfonyl chlorides (VI) and heterocyclically substituted carbamates (III), amines (V) and/or (thio)-isocyanates (XIX).