Tetrasubstituted urea compounds and herbicidal compositions

US4058392A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rudolf Thomas · Haan, DE
• Wolfgang Kramer · Wuppertal, DE
• Ludwig Eue
• Carl Metzger · Köngen, DE
• Gerhard Jager · Leverkusen, DE

Key dates

• Filing date: Sep 10, 1973
• Grant date: Nov 15, 1977
• Expiry date: Sep 10, 1993

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C275/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New N,N'-tetrasubstituted ureas of the formula ##STR1## in which X is oxygen, sulfur or an NR.sup.5 -- or SO.sub.2 --group, R is alkyl or an optionally substituted aryl group, or an optionally substituted aralkyl group, R.sup.1 and R.sup.4 are individually optionally substituted hydrocarbyl which may contain oxygen or sulfur, R.sup.2 is optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkoxy or cycloalkyl, R.sup.3 is alkyl, which may optionally be substituted by halogen, or is alkenyl, or R.sup.2 and R.sup.3 conjointly form an alkylene bridge, which can be interrupted by a hetero-atom, such as O, or N-alkyl group and which forms a heterocyclic ring with the adjoining nitrogen atom, R.sup.1 and R.sup.5, independently of one another, are each alkyl or conjointly form an alkylene bridge, which can be interrupted by a hetero-atom, such as O, and which forms a heterocyclic ring with the adjoining nitrogen atom; and Y is oxygen or sulfur; are remarkably effective and selective herbicides.