Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators

US6498253B1 · kind B1 · 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: Feb 25, 1999
• Grant date: Dec 24, 2002
• Expiry date: Feb 25, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D409/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula (I) and salts thereof in which W1, W2, R, n, R1, R2, R4, X, Y and Z are as defined in claim 1 and R3 is an acyl radical, are suitable as herbicides and plant growth regulators. The herbicides can be prepared by the process variants from claim 5, the novel intermediate products (II), (IV), (VI) and (VIII)* of claims 9 and 10 being employed.