Sulphonylurea-type herbicides

US4960454A · kind A · utility

Assignee

• Rhone-Poulenc Agrochimie · FR

Inventors

• Guy Borrod · Lyon, FR
• Alain Gadras · Val-de-Reuil, FR

Key dates

• Filing date: Jun 15, 1988
• Grant date: Oct 2, 1990
• Expiry date: Jun 15, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/0814
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicides of the formula (I): EQU L--SO.sub.2 --NH--CO--NR.sub.6 --A in which: PA0 L denotes one of the groups of the formulae L-1 to L-6 given below, PA0 A denotes the group of the formula (II) given below, ##STR1## R.sub.1, R.sub.2 and R.sub.3 can be identical or different and represent a C.sub.1 -C.sub.4 alkyl radical or a C.sub.7 -C.sub.11 aralkyl radical, especially benzyl; PA0 R.sub.7, R.sub.8 and R.sub.9 can be identical or different and represent a hydrogen or halogen atom, a C.sub.1 -C.sub.4 radical which is optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio radicals, C.sub.3 -C.sub.6 cycloalkyl which is optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio radicals, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio which are optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio radicals, R.sub.13 S(O).sub.n --, n being an integer equal to 1 or 2 and R.sub.13 being a C.sub.1 -C.sub.4 alkyl radical which is optionally substituted by one or more halogen atoms or C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4…